APA
Fox N. S., Saltzman D. H., Schwartz R., Roman A. S., Klauser C. K. & Rebarber A. (20111206). Second-trimester estimated fetal weight and discordance in twin pregnancies: association with fetal growth restriction. : Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine.
Chicago
Fox Nathan S, Saltzman Daniel H, Schwartz Rachel, Roman Ashley S, Klauser Chad K and Rebarber Andrei. 20111206. Second-trimester estimated fetal weight and discordance in twin pregnancies: association with fetal growth restriction. : Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine.
Harvard
Fox N. S., Saltzman D. H., Schwartz R., Roman A. S., Klauser C. K. and Rebarber A. (20111206). Second-trimester estimated fetal weight and discordance in twin pregnancies: association with fetal growth restriction. : Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine.
MLA
Fox Nathan S, Saltzman Daniel H, Schwartz Rachel, Roman Ashley S, Klauser Chad K and Rebarber Andrei. Second-trimester estimated fetal weight and discordance in twin pregnancies: association with fetal growth restriction. : Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine. 20111206.