APA

Oliveira N., Doyle L. E., Atlas R. O., Jenkins C. B., Blitzer M. G. & Baschat A. A. (20150514). External validity of first-trimester algorithms in the prediction of pre-eclampsia disease severity. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Chicago

Oliveira N, Doyle L E, Atlas R O, Jenkins C B, Blitzer M G and Baschat A A. 20150514. External validity of first-trimester algorithms in the prediction of pre-eclampsia disease severity. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Harvard

Oliveira N., Doyle L. E., Atlas R. O., Jenkins C. B., Blitzer M. G. and Baschat A. A. (20150514). External validity of first-trimester algorithms in the prediction of pre-eclampsia disease severity. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

MLA

Oliveira N, Doyle L E, Atlas R O, Jenkins C B, Blitzer M G and Baschat A A. External validity of first-trimester algorithms in the prediction of pre-eclampsia disease severity. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology. 20150514.