title: Letter: Fetal lung maturation in toxaemia and oestrogen therapy in management of respiratory distress syndrome.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis; D001724:Birth Weight; D004967:Estrogens / Q000378:metabolism / Q000627:therapeutic use; D005260:Female; D005865:Gestational Age; D006801:Humans; D007231:Infant, Newborn; D007751:Labor, Induced; D008168:Lung / Q000196:embryology*; D008431:Maternal-Fetal Exchange; D010713:Phosphatidylcholines / Q000032:analysis; D011225:Pre-Eclampsia / Q000150:complications*; D011247:Pregnancy; D011296:Prenatal Diagnosis; D012127:Respiratory Distress Syndrome, Newborn / Q000175:diagnosis / Q000209:etiology / Q000517:prevention & control*; D013109:Sphingomyelins / Q000032:analysis
chemical_list: D004967:Estrogens; D010713:Phosphatidylcholines; D013109:Sphingomyelins