TY - BOOK AU - Matthias W. Wichmann AU - Timothy K. McCullough AU - Ian C. Roberts-Thomson AU - Guy J. Maddern TI - Gastroenterology For General Surgeons SN - 9783319927688 PB - Springer International Publishing N1 - Online Resources UR - https://doi.org/10.1007/978-3-319-92768-8 ER -