title: Ritodrine in the treatment of preterm labor: second Danish multicenter study.
mesh_terms: D002986:Clinical Trials as Topic; D005260:Female; D006801:Humans; D007752:Obstetric Labor, Premature / Q000188:drug therapy*; D011247:Pregnancy; D011897:Random Allocation; D012312:Ritodrine / Q000627:therapeutic use*
chemical_list: D012312:Ritodrine