Low second-trimester maternal serum human chorionic gonadotrophin in a trisomy 9 pregnancy.
Lam
Y H
YH
Lee
C P
CP
Tang
M H
MH
D000015:Abnormalities, Multiple / Q000235:genetics; D000328:Adult; D000649:Amniocentesis; D006063:Chorionic Gonadotropin / Q000097:blood*; D002899:Chromosomes, Human, Pair 9; D005260:Female; D006801:Humans; D011247:Pregnancy; D014314:Trisomy
D006063:Chorionic Gonadotropin