APA
Smidt-Jensen S., Permin M. & Philip J. (20031003). Sampling success and risk by transabdominal chorionic villus sampling, transcervical chorionic villus sampling and amniocentesis: a randomized study. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.
Chicago
Smidt-Jensen S, Permin M and Philip J. 20031003. Sampling success and risk by transabdominal chorionic villus sampling, transcervical chorionic villus sampling and amniocentesis: a randomized study. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.
Harvard
Smidt-Jensen S., Permin M. and Philip J. (20031003). Sampling success and risk by transabdominal chorionic villus sampling, transcervical chorionic villus sampling and amniocentesis: a randomized study. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.
MLA
Smidt-Jensen S, Permin M and Philip J. Sampling success and risk by transabdominal chorionic villus sampling, transcervical chorionic villus sampling and amniocentesis: a randomized study. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology. 20031003.