DOI:
10.1055/s-00000020
Geburtshilfe und Frauenheilkunde
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References
Schildkraut JM, Calingaert B, Marchbanks PA, Moorman PG, Rodriguez GC.
Impact of progestin and estrogen potency in oral contraceptives on ovarian cancer risk.
J Nat Cancer I 2002; 94: 32-38
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