title: Open access endoscopy: diagnostic role in upper gastrointestinal disorders.
authors.forename: M M
authors.initials: MM
authors.lastname: Haque
authors.forename: M M
authors.initials: MM
authors.lastname: Islam
mesh_terms: D000328:Adult; D000367:Age Factors; D001459:Bangladesh / Q000453:epidemiology; D016099:Endoscopy, Gastrointestinal / Q000379:methods; D005260:Female; D005767:Gastrointestinal Diseases / Q000175:diagnosis* / Q000453:epidemiology; D006801:Humans; D008297:Male; D012737:Sex Factors