title: The effect of betamethasone therapy on the L/S-ratio in amniotic fluid.
mesh_terms: D000653:Amniotic Fluid / Q000032:analysis*; D001623:Betamethasone / Q000494:pharmacology* / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D004964:Estriol / Q000652:urine; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000032:analysis; D007231:Infant, Newborn; D010713:Phosphatidylcholines / Q000032:analysis*; D011247:Pregnancy; D012127:Respiratory Distress Syndrome, Newborn / Q000517:prevention & control; D013109:Sphingomyelins / Q000032:analysis*
chemical_list: D010713:Phosphatidylcholines; D013109:Sphingomyelins; D001623:Betamethasone; D004964:Estriol; D006854:Hydrocortisone