[Role of endoscopic examination in early diagnosis of digestive diseases].
D000328:Adult; D000368:Aged; D004378:Duodenal Diseases / Q000175:diagnosis*; D004724:Endoscopy; D005069:Evaluation Studies as Topic; D005773:Gastroscopy; D006801:Humans; D008875:Middle Aged; D013272:Stomach Diseases / Q000175:diagnosis*; D013997:Time Factors
Rol' endoskopicheskogo issledovaniia v rannem vyiavlenii zabolevaniĭ pishchevaritel'noĭ sistemy.