Utility of esophagogastroduodenoscopy in positive FOBT with negative colonoscopy: Yield of upper gastrointestinal malignancy and clinically significant findings. - Taher Natour R; Mahamid A; Gal O; Mari A; Khader M; Hazzan R; Abu Baker F (Journal of investigative medicine : the official publication of the American Federation for Clinical Research, 2026)