TY - BOOK AU - Feldman, Mark AU - Friedman, Lawrence S. TI - Sleisenger & Fordtran's Gastrointestinal & Liver Disease : : Pathophysiology, Diagnosis, Management SN - 9780323609623 U1 - 616.33 PY - 2021/// CY - Philadelphia PB - Elsevier KW - Gastrointestinal System--Diseases N1 - xxvi, 2215 P (Vol.2) ER -