TY - BOOK TI - GE: Portuguese Journal of Gastroenterology SN - 2387-1954 CY - Switzerland KW - Diseases of the digestive system. Gastroenterology KW - Internal medicine KW - Specialties of internal medicine KW - Medicine UR - https://doaj.org/toc/ded8c21c8a4b4419b997d04cfbe36307 ER -