Barbateskovic M, Koster TM, Keus F, Gluud C, Møller MH, van der Horst ICC, Perner A, Wetterslev J. A protocol for constructing a tool to assess clinical heterogeneity in meta-analyses, assessment of interrater variability, and a pilot study of the association between clinical and statistical heterogeneity – 11-03-2019. 2019: 1-31. Protocols for systematic reviews / By Nazanin Bashiri