THE ROLE OF GASTROINTESTINAL ENDOSCOPY IN GASTROENTEROLOGIC CANCER.
D004724:Endoscopy; D016099:Endoscopy, Gastrointestinal; D005770:Gastrointestinal Neoplasms; D006801:Humans; D009369:Neoplasms / Q000175:diagnosis*
ENDOSCOPY; GASTROINTESTINAL NEOPLASMS; NEOPLASM DIAGNOSIS