APA

Tournemire A., Groussolles M., Ehlinger V., Lusque A., Morin M., Benevent J. B., Arnaud C. & Vayssière C. (20160414). Prenasal thickness to nasal bone length ratio: effectiveness as a second or third trimester marker for Down syndrome. : European journal of obstetrics, gynecology, and reproductive biology.

Chicago

Tournemire A, Groussolles M, Ehlinger V, Lusque A, Morin M, Benevent J B, Arnaud C and Vayssière C. 20160414. Prenasal thickness to nasal bone length ratio: effectiveness as a second or third trimester marker for Down syndrome. : European journal of obstetrics, gynecology, and reproductive biology.

Harvard

Tournemire A., Groussolles M., Ehlinger V., Lusque A., Morin M., Benevent J. B., Arnaud C. and Vayssière C. (20160414). Prenasal thickness to nasal bone length ratio: effectiveness as a second or third trimester marker for Down syndrome. : European journal of obstetrics, gynecology, and reproductive biology.

MLA

Tournemire A, Groussolles M, Ehlinger V, Lusque A, Morin M, Benevent J B, Arnaud C and Vayssière C. Prenasal thickness to nasal bone length ratio: effectiveness as a second or third trimester marker for Down syndrome. : European journal of obstetrics, gynecology, and reproductive biology. 20160414.