“…Of the 21 studies, 4 studies were from China (Zhang & Jin, 2016;Li, Long, D. Cao & F. Cao, 2017;Huang, Liu, Wang & Liu, 2021;Qi et al, 2022), 5 studies were from Iran (Jahromi, Mohseni, Manesh, Pouryousef & Poorgholami, 2019;Vaezi, Soojoodi, Banihashemi & Nojomi, 2019;Akbari, Rahmatinejad, Shater, Vahedian & Khalajinia, 2020;Eslahi, Bahrami, Allen & Alimoradi, 2021;Hajipoor, Pakseresht, Niknami, Roshan & Nikandish, 2021), 3 studies were from Japan (Yamada, Isumi & Fujiwara, 2020;Ando et al, 2021;Kondou, Yasui & Haku, 2021), 2 studies were from Turkey…”