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Search clinical trials for: Biopsies, oral (saliva) and/or secretions, washings or mucosal scrapings/brushing from routine clini
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University of PittsburghNational Cancer Institute (NCI); National Institutes of Health (NIH)RecruitingEsophageal Cancer | Esophageal Diseases | Hiatal Hernia | Esophageal Achalasia | Gastroesophageal Reflux Disease (GERD)United States