title: Relation of the site of congenital upper gastrointestinal obstruction to amniotic fluid bilirubin concentration.
mesh_terms: D000649:Amniocentesis; D000653:Amniotic Fluid / Q000032:analysis*; D001663:Bilirubin / Q000032:analysis*; D005260:Female; D005767:Gastrointestinal Diseases / Q000151:congenital*; D006801:Humans; D007231:Infant, Newborn; D007415:Intestinal Obstruction / Q000151:congenital*; D011247:Pregnancy
chemical_list: D001663:Bilirubin