title: Use of lecithin-sphingomyelin ratio in the management of the problem obstetric patient.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D001835:Body Weight; D005314:Embryonic and Fetal Development; D005321:Extraembryonic Membranes; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D007235:Infant, Premature, Diseases / Q000175:diagnosis; D010758:Phosphorus / Q000032:analysis; D011247:Pregnancy; D011248:Pregnancy Complications; D011249:Pregnancy Complications, Cardiovascular; D011254:Pregnancy in Diabetics; D012127:Respiratory Distress Syndrome, Newborn; D012422:Rupture, Spontaneous; D013109:Sphingomyelins / Q000032:analysis*; D014592:Uterine Hemorrhage / Q000150:complications
chemical_list: D013109:Sphingomyelins; D010758:Phosphorus