Female workforce participation, use of oral contraceptives, and the sex ratio of Crohn's disease incidence.
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D000328:Adult; D003276:Contraceptives, Oral / Q000009:adverse effects*; D003424:Crohn Disease / Q000453:epidemiology* / Q000209:etiology; D004651:Employment; D005060:Europe / Q000453:epidemiology; D005260:Female; D006801:Humans; D015994:Incidence; D007564:Japan / Q000453:epidemiology; D008297:Male; D012307:Risk Factors; D012744:Sex Ratio; D014481:United States / Q000453:epidemiology
D003276:Contraceptives, Oral