title: A new amniotic fluid lecithin button test.
mesh_terms: D000649:Amniocentesis; D000653:Amniotic Fluid / Q000032:analysis*; D000818:Animals; D001516:Bees; D004912:Erythrocytes; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis; D005865:Gestational Age; D006801:Humans; D008244:Lysophosphatidylcholines / Q000378:metabolism; D008722:Methods; D010713:Phosphatidylcholines / Q000032:analysis* / Q000378:metabolism; D010740:Phospholipases / Q000378:metabolism; D011247:Pregnancy
chemical_list: D008244:Lysophosphatidylcholines; D010713:Phosphatidylcholines; D010740:Phospholipases