Screening for down syndrome during first trimester: A prospective study using free β-human chorionic gonadotropin and pregnancy-associated plasma protein A
Jean-Claude Forest, Jacques Massé, Jean-Marie MoutquinVolume:
30
Year:
1997
Language:
english
Pages:
6
DOI:
10.1016/s0009-9120(97)00004-0
File:
PDF, 635 KB
english, 1997