title: [Flexible biopsy esophagogastroduodenoscopes with fiber optics].
mesh_terms: D001706:Biopsy / Q000295:instrumentation; D004386:Duodenum; D019723:Endoscopes; D020701:Esophagoscopes; D005336:Fiber Optic Technology / Q000295:instrumentation; D020699:Gastroscopes; D055100:Optical Fibers; D014586:USSR
vernacular_title: Gibkie biopsiĭnye ézofagogastroduodenoskopy s volokonnoĭ optikoĭ.