TY - GEN AU - Gitnick,G TI - Etiology of inflammatory bowel diseases: where have we been? Where are we going? SN - 0085-5928 PY - 1990///1205 KW - Colitis, Ulcerative KW - etiology KW - Crohn Disease KW - Humans KW - Intestines KW - microbiology N1 - Publication Type: Journal Article; Review UR - https://doi.org/10.3109/00365529009093132 ER -