Cararach, Vicenç Nifedipine versus ritodrine for suppression of preterm labor. Comparison of their efficacy and secondary effects. [electronic resource] - European journal of obstetrics, gynecology, and reproductive biology Aug 2006 - 204-8 p. digital Publication Type: Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 0301-2115 Standard No.: 10.1016/j.ejogrb.2005.10.020 doi Subjects--Topical Terms: Administration, OralAdultFemaleGestational AgeHumansInfusions, IntravenousNifedipine--adverse effectsObstetric Labor, Premature--prevention & controlParityPregnancyPregnancy OutcomeRitodrine--adverse effectsTocolytic Agents--adverse effectsTreatment Outcome