title: Clinical application of the amniotic fluid lecithin-sphingomyelin ratio.
mesh_terms: D000649:Amniocentesis; D000653:Amniotic Fluid / Q000032:analysis*; D002845:Chromatography; D003404:Creatinine / Q000032:analysis; D005314:Embryonic and Fetal Development; D005260:Female; D005333:Fetus / Q000166:cytology; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D008168:Lung / Q000254:growth & development; D010713:Phosphatidylcholines / Q000032:analysis*; D011247:Pregnancy; D011254:Pregnancy in Diabetics / Q000378:metabolism; D012127:Respiratory Distress Syndrome, Newborn / Q000175:diagnosis; D013109:Sphingomyelins / Q000032:analysis*; D013194:Staining and Labeling
chemical_list: D010713:Phosphatidylcholines; D013109:Sphingomyelins; D003404:Creatinine