title: Letter: Respiratory distress syndrome.
mesh_terms: D000818:Animals; D001623:Betamethasone / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D003907:Dexamethasone / Q000627:therapeutic use; D005260:Female; D005938:Glucocorticoids / Q000627:therapeutic use*; D006801:Humans; D007231:Infant, Newborn; D007743:Labor, Obstetric; D011247:Pregnancy; D011446:Prospective Studies; D012127:Respiratory Distress Syndrome, Newborn / Q000517:prevention & control*; D012756:Sheep
chemical_list: D005938:Glucocorticoids; D003907:Dexamethasone; D001623:Betamethasone