Papageorghiou, A. T., Kennedy, S. H., Salomon, L. J., Ohuma, E. O., Cheikh Ismail, L., Barros, F. C., . . . Villar, J. (2014). International standards for early fetal size and pregnancy dating based on ultrasound measurement of crown–rump length in the first trimester of pregnancy. Ultrasound Obstet Gynecol.
Stile di citazione ChicagoPapageorghiou, A T., et al. "International Standards for Early Fetal Size and Pregnancy Dating Based On Ultrasound Measurement of Crown–rump Length in the First Trimester of Pregnancy." Ultrasound Obstet Gynecol 2014.
Citazione MLAPapageorghiou, A T., et al. "International Standards for Early Fetal Size and Pregnancy Dating Based On Ultrasound Measurement of Crown–rump Length in the First Trimester of Pregnancy." Ultrasound Obstet Gynecol 2014.