American journal of obstetrics and gynecology, 224(2), 187.e1-187.e10. Mosby Inc. American Journal of Obstetrics and Gynecology, 224 American Journal of Obstetrics and Gynecology, 224(2), 187.e1-187.e10. MOSBY-ELSEVIER American Journal of Obstetrics and Gynecology, 224(2). MOSBY-ELSEVIER American Journal of Obstetrics and Gynecology, 224, 2