Stone, JenniferGurunathan, UshaGlass, KathrynMunn, ZacharyTugwell, PeterDoi, Suhail A R2020-07-070895-4356http://hdl.handle.net/1885/205863application/pdfen-AU© 2019 Elsevier IncLetter re: stratification by quality is not recommended in meta-analysis201910.1016/j.jclinepi.2019.06.0042020-03-08