 | Up a level |
Wertli, Maria Monika; Flury, Julian S; Streit, Sven; Limacher, Andreas; Schuler, Vanessa; Ferrante, Asha-Naima; Rimensberger, Caroline; Haschke, Manuel (2021). Efficacy of metamizole versus ibuprofen and a short educational intervention versus standard care in acute and subacute low back pain: a study protocol of a randomised, multicentre, factorial trial (EMISI trial). BMJ open, 11(10), e048531. BMJ Publishing Group 10.1136/bmjopen-2020-048531
