[A case-control study of high-risk factors in ovarian carcinoma].
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D002681:China; D004812:Epidemiologic Methods; D005260:Female; D006801:Humans; D008599:Menstruation Disturbances / Q000150:complications; D008875:Middle Aged; D009107:Mumps; D010051:Ovarian Neoplasms / Q000453:epidemiology / Q000209:etiology*; D010298:Parity; D012307:Risk Factors