TY - BOOK TI - Gastroenterology & Endoscopy SN - 2949-7523 CY - China KW - Diseases of the digestive system. Gastroenterology KW - Internal medicine KW - Specialties of internal medicine KW - Medicine UR - https://doaj.org/toc/2331c056afa94acfa9e1b8c859239e54 ER -