Endoscopic biopsies of the esophagus, stomach and peritoneal cavity.
D001706:Biopsy; D004724:Endoscopy; D004945:Esophagoscopy; D004947:Esophagus; D005773:Gastroscopy; D006801:Humans; D010529:Peritoneal Cavity; D013270:Stomach
BIOPSY; ENDOSCOPY; ESOPHAGOSCOPY; GASTROSCOPY