"For the re-analysis, Andrew Hill, PhD, of the University of Liverpool in England, and colleagues included 12 studies with 2,628 participants, and assessed them

"For the re-analysis, Andrew Hill, PhD, of the University of Liverpool in England, and colleagues included 12 studies with 2,628 participants, and assessed them for bias." https://ivmmeta.com/ https://ivmmeta.com/ lists 64 studies, and there's no mention in the re-analysis of how they selected the 12 studies that they decided to "re-analyse". Why not re-analyse all of them?