“…Common methodological aspects that were not present in the systematic reviews were 'a prori design' not provided [3][4][5]12 , duplicate study selection and data extaction not completed 5,10,11 , grey literature not included 3,4,7,8 and list of excluded studies not provided 5, 7-9 funding information or conflict of interest not provided 5 . Two of the reviews were literature reviews 13, 14 and one was an integrative review 15 for which many of the questions in the checklist were not applicable. The literature reviews both had good searches and included grey literature.…”