DOI:
10.1055/s-00000009
American Journal of Perinatology
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References
Vercellini P, Zuliani G, Rognoni MT, Trespidi L, Oldani S, Cardinale A.
Pregnancy at forty and over: a case-control study
Eur J Obstet Gynecol Reprod Biol 1993; 48: 191-195
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