Ritodrine or terbutaline--the optimal dosage in the treatment of preterm labor.
D005260:Female; D006801:Humans; D007752:Obstetric Labor, Premature / Q000517:prevention & control*; D011247:Pregnancy; D012312:Ritodrine / Q000008:administration & dosage*; D013726:Terbutaline / Q000008:administration & dosage*
D012312:Ritodrine; D013726:Terbutaline