“…In addition, four other meta-analyses also stood out as very well-performed studies [33,34,102,161]. Most of the high-risk scores in this category were generated by a subset of nine studies that did not properly define the study inclusion criteria, the search strategy, and how the specific studies were selected [24,43,51,92,94,116,125,138,155]. Many of the unclear risk score results also came from these studies and resulted from not describing how the data were collected, for not assessing the quality/ bias of the included studies, and/or for not performing sensitivity analyses.…”