Transvaginal chorionic sampling during the first trimester of pregnancy.
Schulman
J D
JD
Black
S H
SH
Soenksen
D
D
Jones
S L
SL
Dorfmann
A D
AD
D015193:Chorionic Villi Sampling / Q000379:methods*; D005260:Female; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D014621:Vagina