“…These studies were published in peer-reviewed journals in eight geographical regions, including five studies each from Korea ( Jang et al, 2008 ; Bach et al, 2016 ; Lee et al, 2021 ; Lee et al, 2022 ; Park et al, 2022 ) and Iran ( Ghorbani and Mirghafourvand, 2019 ; Mohammadi et al, 2019 ; Saboori et al, 2019 ; Ghavami et al, 2020 ; Miraghajani et al, 2020 ); four from China ( Duan et al, 2018 ; Zhu et al, 2021 ; Luo and Huang, 2022 ; Zhu et al, 2022 ); and one each from Italy ( Antonelli et al, 2020 ), Canada ( Seida et al, 2011 ), Japan ( Ikeuchi et al, 2022 ), Australia ( An et al, 2011 ), and Malaysia ( Sha’ari et al, 2021 ). Eight studies had registered their protocols prior to publication ( Antonelli et al, 2020 ; Lee et al, 2021 ; Sha’ari et al, 2021 ; Zhu et al, 2021 ; Ikeuchi et al, 2022 ; Lee et al, 2022 ; Luo and Huang, 2022 ; Park et al, 2022 ). The RCTs number involved in every meta-analysis varied between two and 28, and the total number of participants ranged between 123 and 2,503.…”