title: Amniotic-fluid lecithin-sphingomyelin ratios and dexamethasone.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D003907:Dexamethasone / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008168:Lung / Q000187:drug effects; D008297:Male; D010713:Phosphatidylcholines / Q000032:analysis*; D011247:Pregnancy; D011295:Prenatal Care; D011296:Prenatal Diagnosis; D012127:Respiratory Distress Syndrome, Newborn / Q000188:drug therapy / Q000517:prevention & control*; D013109:Sphingomyelins / Q000032:analysis*
chemical_list: D010713:Phosphatidylcholines; D013109:Sphingomyelins; D003907:Dexamethasone