title: Amniotic-fluid alpha-fetoprotein and fetal renal agenesis.
mesh_terms: D000649:Amniocentesis; D000653:Amniotic Fluid / Q000032:analysis*; D004200:Diseases in Twins; D005188:False Negative Reactions; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007668:Kidney / Q000002:abnormalities*; D008297:Male; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D014430:Twins, Monozygotic; D000509:alpha-Fetoproteins / Q000032:analysis*
chemical_list: D000509:alpha-Fetoproteins