title: Experience with upper gastrointestinal endoscopy in Ibadan.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D004724:Endoscopy; D004945:Esophagoscopy; D005260:Female; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D005773:Gastroscopy; D006801:Humans; D008297:Male; D008875:Middle Aged