Environmental risk factors in inflammatory bowel disease.
Rupert W L
RW
Leong
D003093:Colitis, Ulcerative / Q000453:epidemiology / Q000209:etiology* / Q000517:prevention & control; D003424:Crohn Disease / Q000453:epidemiology / Q000209:etiology* / Q000517:prevention & control; D004777:Environment; D006801:Humans; D015994:Incidence; D018570:Risk Assessment; D012307:Risk Factors