title: The effect of cesarean section on respiratory distress in the presence of a mature lecithin-sphingomyelin ratio.
mesh_terms: D000649:Amniocentesis; D002585:Cesarean Section / Q000009:adverse effects*; D004899:Erythroblastosis, Fetal / Q000401:mortality; D005260:Female; D005865:Gestational Age; D006801:Humans; D006819:Hyaline Membrane Disease / Q000175:diagnosis; D007231:Infant, Newborn; D008168:Lung / Q000196:embryology; D008431:Maternal-Fetal Exchange; D010713:Phosphatidylcholines / Q000032:analysis*; D011225:Pre-Eclampsia; D011247:Pregnancy; D011248:Pregnancy Complications; D011254:Pregnancy in Diabetics; D012127:Respiratory Distress Syndrome, Newborn / Q000175:diagnosis*; D013109:Sphingomyelins / Q000032:analysis*
chemical_list: D010713:Phosphatidylcholines; D013109:Sphingomyelins