title: A comparison of flexible and rigid endoscopy in evaluating esophageal cancer patients for surgery.
authors.forename: H C
authors.initials: HC
authors.lastname: Cheung
authors.forename: K F
authors.initials: KF
authors.lastname: Siu
authors.forename: J
authors.initials: J
authors.lastname: Wong
mesh_terms: D020680:Bronchoscopes; D002294:Carcinoma, Squamous Cell / Q000175:diagnosis*; D004938:Esophageal Neoplasms / Q000175:diagnosis*; D020701:Esophagoscopes; D005260:Female; D005336:Fiber Optic Technology / Q000295:instrumentation; D006801:Humans; D008297:Male; D008875:Middle Aged; D011300:Preoperative Care