APA

Isaksen C. V., Eik-Nes S. H., Blaas H. G., Tegnander E. & Torp S. H. (19990429). Comparison of prenatal ultrasound and postmortem findings in fetuses and infants with congenital heart defects. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Chicago

Isaksen C V, Eik-Nes S H, Blaas H G, Tegnander E and Torp S H. 19990429. Comparison of prenatal ultrasound and postmortem findings in fetuses and infants with congenital heart defects. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

Harvard

Isaksen C. V., Eik-Nes S. H., Blaas H. G., Tegnander E. and Torp S. H. (19990429). Comparison of prenatal ultrasound and postmortem findings in fetuses and infants with congenital heart defects. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.

MLA

Isaksen C V, Eik-Nes S H, Blaas H G, Tegnander E and Torp S H. Comparison of prenatal ultrasound and postmortem findings in fetuses and infants with congenital heart defects. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology. 19990429.