APA

Liem S. M. S., van Baaren G. J., Delemarre F. M. C., Evers I. M., Kleiverda G., van Loon A. J., Langenveld J., Schuitemaker N., Sikkema J. M., Opmeer B. C., van Pampus M. G., Mol B. W. J. & Bekedam D. J. (20150514). Economic analysis of use of pessary to prevent preterm birth in women with multiple pregnancy (ProTWIN trial). : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Chicago

Liem S M S, van Baaren G J, Delemarre F M C, Evers I M, Kleiverda G, van Loon A J, Langenveld J, Schuitemaker N, Sikkema J M, Opmeer B C, van Pampus M G, Mol B W J and Bekedam D J. 20150514. Economic analysis of use of pessary to prevent preterm birth in women with multiple pregnancy (ProTWIN trial). : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Harvard

Liem S. M. S., van Baaren G. J., Delemarre F. M. C., Evers I. M., Kleiverda G., van Loon A. J., Langenveld J., Schuitemaker N., Sikkema J. M., Opmeer B. C., van Pampus M. G., Mol B. W. J. and Bekedam D. J. (20150514). Economic analysis of use of pessary to prevent preterm birth in women with multiple pregnancy (ProTWIN trial). : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

MLA

Liem S M S, van Baaren G J, Delemarre F M C, Evers I M, Kleiverda G, van Loon A J, Langenveld J, Schuitemaker N, Sikkema J M, Opmeer B C, van Pampus M G, Mol B W J and Bekedam D J. Economic analysis of use of pessary to prevent preterm birth in women with multiple pregnancy (ProTWIN trial). : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology. 20150514.