Ulcerative colitis in a Southern general hospital and a Southern industrial-rural area; a concept of etiology and an attempt at a geography of the disease.
D003092:Colitis; D003093:Colitis, Ulcerative / Q000453:epidemiology*; D005843:Geography; D006769:Hospitals, General; D006801:Humans; D007221:Industry
COLITIS, ULCERATIVE/epidemiology