title: Amniotic fluid lecithin-sphingomyelin ratio in the diagnosis of hyaline membrane disease.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D001805:Blood Transfusion, Intrauterine; D005314:Embryonic and Fetal Development; D005260:Female; D005865:Gestational Age; D006801:Humans; D006819:Hyaline Membrane Disease / Q000175:diagnosis*; D007231:Infant, Newborn; D008168:Lung / Q000196:embryology; D010713:Phosphatidylcholines / Q000032:analysis*; D011247:Pregnancy; D011254:Pregnancy in Diabetics; D011272:Pregnancy, Multiple; D011296:Prenatal Diagnosis; D013109:Sphingomyelins / Q000032:analysis*; D014310:Triplets
chemical_list: D010713:Phosphatidylcholines; D013109:Sphingomyelins