“…Description of studies. With regard to the study design or methodology, just under one-third of the studies used qualitative methodology 41,43,45,48,53,54 and most used quantitative methodology, 37,38,40,[42][43][44][45][46][47][48][49][50][51][52][53]55,56 including randomized control trials, 44,50 cohort study design, 52 cross-sectional study design, 48 non-randomized intervention study design, 38,40,45,46,49 pilot study design, 55 and studies with mixed methodology, 43,45,53 which also included observational study design examining quality standards 7,58 (Fig. 2).…”