“…This systematic review of systematic reviews included 9 quantitative reviews (systematic review with meta-analysis) (Alfawal et al, 2016;Dab et al, 2019;Fleming et al, 2015;Fu et al, 2019;Kamal et al, 2019;Mheissen et al, 2020;Shahabee et al, 2020;Sivarajan et al, 2020;Zimmo et al, 2018) and Five qualitative reviews (systematic review with narrative-analysis) (Apalimova et al, 2020;Figueiredo et al, 2019;Rekhi et al, 2020;Viwattanatipa and Charnchairerk, 2018;Yi et al, 2017). Eight studies (Alfawal et al, 2016;Fleming et al, 2015;Kamal et al, 2019;Rekhi et al, 2020;Shahabee et al, 2020;Sivarajan et al, 2020;Viwattanatipa and Charnchairerk, 2018;Zimmo et al, 2018) included only randomised controlled trials, while the rest included randomised and non-randomised controlled trials.…”