“…The geographical location of the studies varied widely with the majority of (n=15) studies conducted in North America [37,44,[46][47][48][49][50][51][52][53][54][55][56][57][58]. The remaining studies were based in Iran (n=3) [39,41,59], Saudi Arabia (n=2) [35,36], India (n=2) [59,60], and one taking place in each of Australia, Canada, China, Egypt, Germany, Poland, South Korea, Sweden and the UK (n=9) [29,42,43,[62][63][64][65][66][67].…”