Early amniocentesis versus chorionic villus sampling.
Eiben
B
B
Hammans
W
W
Trawicki
W
W
Goebel
R
R
D000649:Amniocentesis / Q000009:adverse effects; D015193:Chorionic Villi Sampling / Q000009:adverse effects; D005260:Female; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy