title: High risk, low mortality in chronic ulcerative colitis: explanation.
authors: H
authors: H
authors: Steinberg
mesh_terms: D003082:Colectomy; D003093:Colitis, Ulcerative / Q000453:epidemiology* / Q000401:mortality / Q000601:surgery; D003110:Colonic Neoplasms / Q000453:epidemiology / Q000401:mortality; D006801:Humans; D015994:Incidence; D012307:Risk Factors