“…The research samples were quite heterogeneous; however, in a significant number of studies, the participants were mainly male [ 83 , 84 , 85 , 86 , 87 , 88 , 89 , 91 , 97 ], adolescents or young adults [ 83 , 84 , 85 , 86 , 87 , 88 , 89 , 97 ] from countries of the Middle East and Africa [ 83 , 85 , 86 , 87 , 88 , 89 , 91 , 97 ]. Ten studies also included other populations apart from UAMs (e.g., native children; adult individuals; and families, mentors, group coordinators, personnel of residential facilities or volunteer guardians) [ 83 , 84 , 87 , 90 , 92 , 94 , 95 , 96 , 97 , 98 ].…”