DOI:
10.1055/s-00000089
Ultraschall in der Medizin - European Journal of Ultrasound
LinksClose Window
References
Snijders RJ, Sundberg K, Holzgreve W et al.
Maternal age-and gestation-specific risk for trisomy 21.
Ultrasound Obstet Gynecol 1999;
13: 167-170
We do not assume any responsibility for the contents of the web pages of other providers.