Filtering
- Societa Italiana di Chirurgia ColoRettale
- Society for Advancement of Coronary Intervention Research
- Society of Military Orthopedic Surgeons
- Society of Minimally Invasive Neurological Therapeutic Procedures
- South Africa AIDS Vaccine Initiative
- South East Asia Infectious Disease Clinical Research Network
- South Florida Family Health and Research Centers
- South Plains Oncology Consortium
- Southwest Oncology Group
- Spanish Clinical Research Network - SCReN
- Spital Davos AG
- Spondyloarthritis Research and Treatment Network
- Spring Research Foundation
- SRH Gesundheitszentrum Bad Herrenalb
- State Key Laboratory of Cancer Biology
- Stem Cell and Cancer Research Indonesia
- Studio Ban Mancini Fabbri
- SURPRISE Study Group
- Swedish Lung Cancer Study Group
- Swiss Go Trial Group
- Swiss HIV Cohort Study
- Swiss Neonatal Network
- Swiss Paraplegic Centre Nottwil
- Syntactx
- TECAM Group
- Thai Gynecologic Oncology Collaborative Group
- Thalassemia Clinical Research Network
- The Canadian Blood and Marrow Transplant Group
- The European Research Group on Periodontology (ERGOPerio)
- the Jeunes en Neuroradiologie Interventionnelle (JENI) research group
- The Korean Society of Pediatric Hematology Oncology
- The National Collaborative Pediatric Critical Care Research Network
- The National Dental Practice-Based Research Network
- The Norwegian Lung Cancer Study Group
- The Parkinson Study Group
- The PCI Guideline Research Society
- The Rheumatological Center of Helsinki
- The Young Investigator Group of Cardiovascular Research
- Think Healthy Group, Inc.
- THINK TB & HIV Investigative Network
- Torre Médica Santé
- Transfusion Medicine/Hemostasis Clinical Research Network
- Treviso Regional Hospital
- Trial Management Group Inc.
- Tuberculosis Clinical Diagnostics Research Consortium
- Tuberculosis Network European Trialsgroup
- Turkish Oncology Group
- Turkish Stroke Research and Clinical Trials Network
- Type 1 Diabetes TrialNet
- UK Dermatology Clinical Trials Network
- Unidad de Investigacion Clinica en Medicina S.C.
- Unidad de Investigación Genética Molecular
- Unika Medical Centre
- UNITI Consortium
- Universal Research Group
- University Hospital of Girona Dr.Josep Trueta
- University Hospital Trnava
- University Of Nigeria Teaching Hospital
- University Psychiatric Clinics Basel
- US Department of Veterans Affairs Cooperative Studies Program
- US Military HIV Research Program
- USRC Kidney Research
- Vall Hebron Insitut Recerca
- Vascular Investigation Network Spanish Society for Angiology and Vascular Surgery
- Vasculitis Clinical Research Consortium (VCRC)
- Vermont Oxford Network
- Vilniaus Implantologijos Centro (VIC) Klinika
- Vitamin D Study Group
- Vladikavkaz Scientific Center of the Russian Academy of Sciences
- Voronezh Regional Clinical Consultative and Diagnostic Center
- Vulnerable Plaque Society
- Wake Network, Inc.
- Washington University Pediatric and Adolescent Ambulatory Research Consortium
- Werner Wicker Klinik
- Wolstan and Goldberg Eye Associates
- Worldwide Antimalarial Resistance Network