Calculating amniotic fluid alpha-fetoprotein median values in the first trimester.
Palomaki
G E
GE
Knight
G J
GJ
Haddow
J E
JE
D000649:Amniocentesis; D000653:Amniotic Fluid / Q000737:chemistry*; D005260:Female; D005865:Gestational Age; D006801:Humans; D011247:Pregnancy; D011261:Pregnancy Trimester, First; D012016:Reference Values; D000509:alpha-Fetoproteins / Q000032:analysis*
D000509:alpha-Fetoproteins