APA
Sepulveda W., Rojas I., Robert J. A., Schnapp C. & Alcalde J. L. (20031209). Prenatal detection of velamentous insertion of the umbilical cord: a prospective color Doppler ultrasound study. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.
Chicago
Sepulveda W, Rojas I, Robert J A, Schnapp C and Alcalde J L. 20031209. Prenatal detection of velamentous insertion of the umbilical cord: a prospective color Doppler ultrasound study. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.
Harvard
Sepulveda W., Rojas I., Robert J. A., Schnapp C. and Alcalde J. L. (20031209). Prenatal detection of velamentous insertion of the umbilical cord: a prospective color Doppler ultrasound study. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.
MLA
Sepulveda W, Rojas I, Robert J A, Schnapp C and Alcalde J L. Prenatal detection of velamentous insertion of the umbilical cord: a prospective color Doppler ultrasound study. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology. 20031209.