“…To overcome these limitations, a secondary search strategy was performed as follows. The references listed in the 46 selected articles 1,3,5,6,[8][9][10][11][12][13][15][16][17][20][21][22][23][24][25][26]29,30,32,33,36,[40][41][42][43][44]46,[48][49][50][51][52][53][54][55][56][57]59,66,[71][72][73] were checked for further relevant references, and religious books (Quran and hadith) and legal codes of selected countries were also consulted from websites. The secondary search strategy resulted in an additional 30 references, which we included in this review.…”