Does fetal growth retardation explain the association between Down syndrome and low levels of maternal serum alpha-fetoprotein?
D001724:Birth Weight; D004314:Down Syndrome / Q000097:blood*; D005260:Female; D006801:Humans; D011247:Pregnancy; D000509:alpha-Fetoproteins / Q000378:metabolism*
D000509:alpha-Fetoproteins