Role of gastrointestinal endoscopy and peritoneoscopy in the diagnosis of cancer.
D001650:Bile Duct Neoplasms / Q000175:diagnosis; D004724:Endoscopy; D004938:Esophageal Neoplasms / Q000175:diagnosis; D005260:Female; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis*; D006801:Humans; D010535:Laparoscopy; D008113:Liver Neoplasms / Q000175:diagnosis; D008297:Male; D010190:Pancreatic Neoplasms / Q000175:diagnosis; D010534:Peritoneal Neoplasms / Q000175:diagnosis*