Tubal ligation and risk of ovarian cancer.
Gjorgov
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AN
D003276:Contraceptives, Oral / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D010051:Ovarian Neoplasms / Q000517:prevention & control*; D013246:Sterilization, Tubal
D003276:Contraceptives, Oral