“…In most studies (n = 55, 59%) there was no mention of data gathering for checklist development (low risk of bias); in 26 cases (28%), one or two citations were noted next to checklist items, with no other explanation of item development or relevance (high risk of bias) (17,18,21–23,29,31,32,34,35,39–41,44,52,81,82,84–86,89,91,93,95,99,102). Twelve records (13%) included a description of authors gathering data to develop a checklist for this criterion (low risk of bias) (13,14,25,30,36–38,42,49,92,96,103).…”