APA
Sparks T. N., Cheng Y. W., Phan N. & Caughey A. B. (20140331). Does risk of preeclampsia differ by twin chorionicity?. : The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians.
Chicago
Sparks Teresa N, Cheng Yvonne W, Phan Ngoc and Caughey Aaron B. 20140331. Does risk of preeclampsia differ by twin chorionicity?. : The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians.
Harvard
Sparks T. N., Cheng Y. W., Phan N. and Caughey A. B. (20140331). Does risk of preeclampsia differ by twin chorionicity?. : The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians.
MLA
Sparks Teresa N, Cheng Yvonne W, Phan Ngoc and Caughey Aaron B. Does risk of preeclampsia differ by twin chorionicity?. : The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians. 20140331.