Terapevticheskii arkhivTerapevticheskii arkhiv0040-36602309-5342LLC Obyedinennaya Redaktsiya30307Endoscopic methods of investigation in gastroenterologyShchepbakovPetr Leonidovich-ScherbakovP L-15022009812808209042020Copyright © 2009, Consilium Medicum2009endoscopyesophagogastroduodenoscopycolonoscopyenteroscopyэндоскопияэзофагогастродуоденоскопияколоноскопияэнтероскопия