Effect of fetal blood contamination upon alpha fetoprotein levels.
D000653:Amniotic Fluid / Q000378:metabolism*; D005189:False Positive Reactions; D005260:Female; D005312:Fetal Blood; D006801:Humans; D011247:Pregnancy; D000509:alpha-Fetoproteins / Q000378:metabolism*
D000509:alpha-Fetoproteins