Risk factors for extrauterine pregnancy in women using an intrauterine device☆
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☆ Supported by the clinical research department of Paris hospitals (Délégation à la Recherche Clinique, Assistance Publique Hôpitaux de Paris) (EMUL 930602), the National Register Committee (Comité National des Registres, INSERM, DGS), and SCHERING SA Company, France.
PII: S0015-0282(00)01605-8
© 2000 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.

