Metamizole versus ibuprofen at home after day surgery: study protocol for a randomised controlled trial.
Bjorn StesselMichiel BoonElbert A JoostenJean-Paul OryStefan EversSander M J van KuijkJasperina DuboisDaisy HoofwijkLuc JamaerWolfgang F F A BuhrePublished in: Trials (2016)
European Union Clinical Trials Register 2015-003987-35 . Registered 10 November 2015.