A freehand ultrasonographically guided technique in transabdominal chorionic villus sampling in more than 24 000 consecutive cases.
Saura
Robert
R
Toutain
Jérôme
J
Horovitz
Jacques
J
D015193:Chorionic Villi Sampling / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods*; D005260:Female; D006801:Humans; D011247:Pregnancy; D018084:Ultrasonography, Interventional