APA
Gámez F., Ferreiro P. & Salmeán J. M. (20040524). Ultrasonographic measurement of fetal nasal bone in a low-risk population at 19-22 gestational weeks. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.
Chicago
Gámez F, Ferreiro P and Salmeán J M. 20040524. Ultrasonographic measurement of fetal nasal bone in a low-risk population at 19-22 gestational weeks. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.
Harvard
Gámez F., Ferreiro P. and Salmeán J. M. (20040524). Ultrasonographic measurement of fetal nasal bone in a low-risk population at 19-22 gestational weeks. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology.
MLA
Gámez F, Ferreiro P and Salmeán J M. Ultrasonographic measurement of fetal nasal bone in a low-risk population at 19-22 gestational weeks. : Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology. 20040524.