DOI:
10.1055/s-00000020
Geburtshilfe und Frauenheilkunde
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References
Tsilidis KK, Allen NE, Key TJ et al.
Oral contraceptive use and reproductive factors and risk of ovarian cancer in
the European Prospective Investigation into Cancer and Nutrition.
Br J Cancer 2011;
105: 1436-1442
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