Clinical and Histological Outcomes of Allogenic Amnion Chorion Membrane in the Healing of Free Gingival Graft Donor Site
17 grudnia 2021 zaktualizowane przez: Chun-Teh Lee, The University of Texas Health Science Center, Houston
The purpose of this study is to compare an allogenic amnion chorion membrane to a collagen dressing in palatal wound healing after harvesting free gingival graft (FGG).
Przegląd badań
Status
Zakończony
Warunki
Interwencja / Leczenie
Typ studiów
Interwencyjne
Zapisy (Rzeczywisty)
19
Faza
- Nie dotyczy
Kontakty i lokalizacje
Ta sekcja zawiera dane kontaktowe osób prowadzących badanie oraz informacje o tym, gdzie badanie jest przeprowadzane.
Lokalizacje studiów
-
-
Texas
-
Houston, Texas, Stany Zjednoczone, 77030
- The University of Texas Health Science Center at Houston
-
-
Kryteria uczestnictwa
Badacze szukają osób, które pasują do określonego opisu, zwanego kryteriami kwalifikacyjnymi. Niektóre przykłady tych kryteriów to ogólny stan zdrowia danej osoby lub wcześniejsze leczenie.
Kryteria kwalifikacji
Wiek uprawniający do nauki
18 lat i starsze (Dorosły, Starszy dorosły)
Akceptuje zdrowych ochotników
Nie
Płeć kwalifikująca się do nauki
Wszystko
Opis
Inclusion Criteria:
- patients attending the Clinic for Graduate Periodontics at The University of Texas health Science Center at Houston School of Dentistry who are in need of a Free Gingival Graft procedure to augment keratinized gingiva, augment ridge, or cover recession defects.
- systemically healthy or with controlled common systemic conditions, such as hypertension, that will not affect wound healing.
Exclusion Criteria:
- size of the FGG that the patient needs bigger than the size of FGGs that have to be harvested in this study (two 8mm (width) x 10mm (length) x ≈1.5mm (thickness) FGG).
- current heavy smokers(>10 cigarettes/day) (patients who stop smoking more than one year are eligible)
- have diabetes or other systemic diseases that may comprise healing
- take antibiotics and/or analgesics within one week before the procedure and have loss of sensation on the palate
Plan studiów
Ta sekcja zawiera szczegółowe informacje na temat planu badania, w tym sposób zaprojektowania badania i jego pomiary.
Jak projektuje się badanie?
Szczegóły projektu
- Główny cel: Leczenie
- Przydział: Randomizowane
- Model interwencyjny: Przydział równoległy
- Maskowanie: Pojedynczy
Broń i interwencje
Grupa uczestników / Arm |
Interwencja / Leczenie |
|---|---|
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Eksperymentalny: Allogenic amnion chorion membrane
Allogenic amnion chorion membrane (ACM) is a minimally manipulated allograft amnion chorion tissue for use as a wound covering in dental surgery.
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Allogenic amnion chorion membrane (ACM) is a minimally manipulated allograft amnion chorion tissue for use as a wound covering in dental surgery.
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Aktywny komparator: Collagen dressing
Collagen dressing is used to cover wounds in dental surgery.
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Collagen dressing is used to cover wounds in dental surgery.
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Co mierzy badanie?
Podstawowe miary wyniku
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
|
Size of Wound Area
Ramy czasowe: baseline
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
baseline
|
|
Size of Wound Area
Ramy czasowe: 4 days
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
4 days
|
|
Size of Wound Area
Ramy czasowe: 10 days
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
10 days
|
|
Size of Wound Area
Ramy czasowe: 14 days
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
14 days
|
|
Size of Wound Area
Ramy czasowe: 21 days
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
21 days
|
|
Size of Wound Area
Ramy czasowe: 28 days
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
28 days
|
|
Size of Wound Area
Ramy czasowe: 45 days
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
45 days
|
|
Size of Wound Area
Ramy czasowe: 60 days
|
The wound area will be assessed by means of a clinical picture.
The picture will be taken with an angulation perpendicular to the wound.
A periodontal probe will be placed by the wound as a reference scale.
Wound area is defined as the area without epithelization.
The wound area on the picture will be measured by ImageJ.
|
60 days
|
Miary wyników drugorzędnych
Miara wyniku |
Opis środka |
Ramy czasowe |
|---|---|---|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Ramy czasowe: baseline
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
baseline
|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Ramy czasowe: 4 days
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
4 days
|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Ramy czasowe: 10 days
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
10 days
|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Ramy czasowe: 14 days
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
14 days
|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Ramy czasowe: 21 days
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
21 days
|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Ramy czasowe: 28 days
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
28 days
|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Ramy czasowe: 45 days
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
45 days
|
|
Number of Participants Stratified as Per the Degree of Epithelialization of Wound
Ramy czasowe: 60 days
|
Epithelialization is measured by means of bubble formation after dripping hydrogen peroxide (3%) to the wound surface.
Less bubbles indicate greater epithelialization, and epithelialization will be ranked as total, partial or none.
|
60 days
|
|
Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Ramy czasowe: baseline
|
The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
|
baseline
|
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Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Ramy czasowe: 4 days
|
The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
|
4 days
|
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Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Ramy czasowe: 10 days
|
The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
|
10 days
|
|
Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Ramy czasowe: 14 days
|
The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
|
14 days
|
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Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Ramy czasowe: 21 days
|
The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
|
21 days
|
|
Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Ramy czasowe: 28 days
|
The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
|
28 days
|
|
Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Ramy czasowe: 45 days
|
The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
|
45 days
|
|
Relative Difference in Color of Wound Site Compared to Adjacent Gingiva
Ramy czasowe: 60 days
|
The color of wound site will be compared to the adjacent gingiva by using a 4-point scale: 1. Obvious difference; 2. Noticeable difference; 3. Disguisable difference; or 4. No noticeable difference in comparison with adjacent gingiva.
|
60 days
|
|
Number of Participants With Haemostasis of Wound Area
Ramy czasowe: baseline
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
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baseline
|
|
Number of Participants With Haemostasis of Wound Area
Ramy czasowe: 4 days
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
|
4 days
|
|
Number of Participants With Haemostasis of Wound Area
Ramy czasowe: 10 days
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
|
10 days
|
|
Number of Participants With Haemostasis of Wound Area
Ramy czasowe: 14 days
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
|
14 days
|
|
Number of Participants With Haemostasis of Wound Area
Ramy czasowe: 21 days
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
|
21 days
|
|
Number of Participants With Haemostasis of Wound Area
Ramy czasowe: 28 days
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
|
28 days
|
|
Number of Participants With Haemostasis of Wound Area
Ramy czasowe: 45 days
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
|
45 days
|
|
Number of Participants With Haemostasis of Wound Area
Ramy czasowe: 60 days
|
Haemostasis is achieved when no bleeding of the wound site is actively seen.
|
60 days
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Ramy czasowe: baseline
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
baseline
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Ramy czasowe: 4 days
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
4 days
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Ramy czasowe: 10 days
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
10 days
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Ramy czasowe: 14 days
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
14 days
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Ramy czasowe: 21 days
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
21 days
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Ramy czasowe: 28 days
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
28 days
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Ramy czasowe: 45 days
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
45 days
|
|
Pain as Assessed by a Visual Analogue Scale (VAS)
Ramy czasowe: 60 days
|
Pain will be assessed by a Visual Analogue Scale (VAS).
Scores range form 0 to 10. 0 indicates no pain, 1 indicates minimal pain, and 10 indicates severe pain.
|
60 days
|
|
Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Ramy czasowe: baseline
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensitivity based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
baseline
|
|
Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Ramy czasowe: 4 days
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensibility based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
4 days
|
|
Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Ramy czasowe: 10 days
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensibility based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
10 days
|
|
Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Ramy czasowe: 14 days
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensibility based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
14 days
|
|
Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Ramy czasowe: 21 days
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensibility based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
21 days
|
|
Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Ramy czasowe: 28 days
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensibility based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
28 days
|
|
Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Ramy czasowe: 45 days
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensibility based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
45 days
|
|
Sensibility of the Wound Area as Indicated by Number of Participants Who Lost Sensation as Assessed by a 3-point Verbal Descriptor Scale (VDS)
Ramy czasowe: 60 days
|
Sensibility will be assessed with a periodontal probe using a rubbing movement and pin-pressure nociception.
Patients will be asked to rate their sensibility based on a 3-point verbal descriptor scale (VDS): no loss of sensation, mild/moderate loss of sensation, or severe loss of sensation.
|
60 days
|
|
Volume of Wound
Ramy czasowe: baseline
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
baseline
|
|
Volume of Wound
Ramy czasowe: 4 days
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
4 days
|
|
Volume of Wound
Ramy czasowe: 10 days
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
10 days
|
|
Volume of Wound
Ramy czasowe: 14 days
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
14 days
|
|
Volume of Wound
Ramy czasowe: 21 days
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
21 days
|
|
Volume of Wound
Ramy czasowe: 28 days
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
28 days
|
|
Volume of Wound
Ramy czasowe: 45 days
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
45 days
|
|
Volume of Wound
Ramy czasowe: 60 days
|
The wound area will analyzed with an intraoral scanner, and three-dimensional images will be reconstructed to determine the volume of the wound.
|
60 days
|
|
Clinician's Feedback on the Wound Dressing Material as Assessed by a Questionnaire
Ramy czasowe: at the time of placement of the wound dressing material
|
at the time of placement of the wound dressing material
|
|
|
Number of Neutrophil Cells as Assessed by Light Microscopy of Haematoxylin and Eosin (H&E)-Stained Biopsy Sections
Ramy czasowe: baseline
|
Gingival specimen biopsies (4mm in diameter, 1.5mm in thickness) will be harvested.
The histological sections will be evaluated using a Nikon light microscope.
|
baseline
|
|
Number of Neutrophil Cells as Assessed by Light Microscopy of Haematoxylin and Eosin (H&E)-Stained Biopsy Sections
Ramy czasowe: 10 days
|
Gingival specimen biopsies (4mm in diameter, 1.5mm in thickness) will be harvested.
The histological sections will be evaluated using a Nikon light microscope.
|
10 days
|
|
Change in Percentage of Collagen Density in Wound Area as Assessed by Light Microscopy of Masson's Trichrome-stained Biopsy Sections
Ramy czasowe: baseline, 10 days
|
baseline, 10 days
|
|
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Thickness of the Epithelium as Assessed by Light Microscopy of Haematoxylin and Eosin (H&E)-Stained Biopsy Sections
Ramy czasowe: baseline
|
Gingival specimen biopsies (4mm in diameter, 1.5mm in thickness) will be harvested.
The histological sections will be evaluated using a Nikon light microscope, and Nikon NIS-Elements Advanced Research (AR) Imagine Software will be used to calculate the thickness of the epithelium.
|
baseline
|
|
Thickness of the Epithelium as Assessed by Light Microscopy of Haematoxylin and Eosin (H&E)-Stained Biopsy Sections
Ramy czasowe: 10 days
|
Gingival specimen biopsies (4mm in diameter, 1.5mm in thickness) will be harvested.
The histological sections will be evaluated using a Nikon light microscope, and Nikon NIS-Elements Advanced Research (AR) Imagine Software will be used to calculate the thickness of the epithelium.
|
10 days
|
|
Angiogenesis as Indicated by Number of Blood Vessels as Assessed by Light Microscopy of Biopsy Sections Immunohistochemically Stained to Detect Factor VIII (Von Willebrandt Factor)
Ramy czasowe: baseline
|
baseline
|
|
|
Angiogenesis as Indicated by Number of Blood Vessels as Assessed by Light Microscopy of Biopsy Sections Immunohistochemically Stained to Detect Factor VIII (Von Willebrandt Factor)
Ramy czasowe: 10 days
|
Gingival specimen biopsies (4mm in diameter, 1.5mm in thickness) will be harvested.
The histological sections will be evaluated using a Nikon light microscope, and the area of angiogenesis will be quantified using Nikon NIS Element AR Imagine Software.
|
10 days
|
Współpracownicy i badacze
Tutaj znajdziesz osoby i organizacje zaangażowane w to badanie.
Śledczy
- Główny śledczy: Chun-Teh Lee, The University of Texas Health Science Center, Houston
Daty zapisu na studia
Daty te śledzą postęp w przesyłaniu rekordów badań i podsumowań wyników do ClinicalTrials.gov. Zapisy badań i zgłoszone wyniki są przeglądane przez National Library of Medicine (NLM), aby upewnić się, że spełniają określone standardy kontroli jakości, zanim zostaną opublikowane na publicznej stronie internetowej.
Główne daty studiów
Rozpoczęcie studiów (Rzeczywisty)
3 października 2016
Zakończenie podstawowe (Rzeczywisty)
17 stycznia 2020
Ukończenie studiów (Rzeczywisty)
17 stycznia 2020
Daty rejestracji na studia
Pierwszy przesłany
17 października 2018
Pierwszy przesłany, który spełnia kryteria kontroli jakości
17 października 2018
Pierwszy wysłany (Rzeczywisty)
19 października 2018
Aktualizacje rekordów badań
Ostatnia wysłana aktualizacja (Rzeczywisty)
19 stycznia 2022
Ostatnia przesłana aktualizacja, która spełniała kryteria kontroli jakości
17 grudnia 2021
Ostatnia weryfikacja
1 grudnia 2021
Więcej informacji
Terminy związane z tym badaniem
Inne numery identyfikacyjne badania
- HSC-DB-18-0303
Informacje o lekach i urządzeniach, dokumenty badawcze
Bada produkt leczniczy regulowany przez amerykańską FDA
Nie
Bada produkt urządzenia regulowany przez amerykańską FDA
Tak
produkt wyprodukowany i wyeksportowany z USA
Nie
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