“…Most of these studies were conducted in Europe, especially the UK (N=6) (Lenney et al, 2000;Barta et al, 2002;Ho et al, 2004;Boyter and Carter, 2005;Wilson et al, 2007;Khdour et al, 2012), followed by Italy (N=3) (Melani et al, 2001;Sestini et al, 2006;Melani et al, 2011), and the Netherlands (N=1) (Rootmensen et al, 2010), Belgium (N=1) (Mehuys et al, 2010), Hungary (N=1) (Agh et al, 2011), France (N=1) (Hesselink et al, 2001), Germany (N=1) (Hämmerlein et al, 2011), the USA (N=3) (Cecere et al, 2012;Huetsch et al, 2012;Trivedi et al, 2012), Australia (N=2) (George et al, 2005;George et al, 2006), Brazil (N=1) (De Moraes Souza et al, 2009) and Jordan (N=1) (Khassawneh et al, 2008).…”