APA
Papageorghiou A. T., Bakoulas V., Sebire N. J. & Nicolaides K. H. (20090804). Intrauterine growth in multiple pregnancies in relation to fetal number, chorionicity and gestational age. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.
Chicago
Papageorghiou A T, Bakoulas V, Sebire N J and Nicolaides K H. 20090804. Intrauterine growth in multiple pregnancies in relation to fetal number, chorionicity and gestational age. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.
Harvard
Papageorghiou A. T., Bakoulas V., Sebire N. J. and Nicolaides K. H. (20090804). Intrauterine growth in multiple pregnancies in relation to fetal number, chorionicity and gestational age. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.
MLA
Papageorghiou A T, Bakoulas V, Sebire N J and Nicolaides K H. Intrauterine growth in multiple pregnancies in relation to fetal number, chorionicity and gestational age. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology. 20090804.