Iams, JD, Romero, R, Culhane, JF
et al. (2009). Preterm Birth 2: Primary, Secondary, and Tertiary Interventions to Reduce the Morbidity and Mortality of Preterm Birth
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Obstetric Anesthesia Digest, 29(1), 7-8. 10.1097/01.aoa.0000344667.20582.bf
Iams, JD, Romero, R, Culhane, JF et al. (2009). Preterm Birth 2: Primary, Secondary, and Tertiary Interventions to Reduce the Morbidity and Mortality of Preterm Birth
. Obstetric Anesthesia Digest, 29(1), 7-8. 10.1097/01.aoa.0000344667.20582.bf