TY - BOOK AU - Chen,Yang AU - Pitcher,Maxton TI - Clinical guide to gastroenterology T2 - Clinical guides SN - 9781119189169 (paperback) U1 - 616.33 23 PY - 2019/// CY - Oxford PB - Wiley-Blackwell KW - Gastrointestinal Diseases KW - diagnosis KW - Diagnostic Techniques, Digestive System ER -