Letter: Direct vision esophageal biopsy using multipurpose biopsy tube in reflux esophagitis.
D001706:Biopsy / Q000295:instrumentation / Q000379:methods*; D004942:Esophagitis, Peptic / Q000473:pathology*; D020701:Esophagoscopes; D004945:Esophagoscopy / Q000379:methods*; D004947:Esophagus / Q000473:pathology; D006801:Humans; D007440:Intubation