Risk factors for preterm birth among opiate-addicted gravid women in a methadone treatment program.

Almario CV, Seligman NS, Dysart KC, Berghella V, Baxter JK. Risk factors for preterm birth among opiate-addicted gravid women in a methadone treatment program. Am J Obstet Gynecol. 2009 Sep; 201(3):326.e1-6.

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