“…Of the quantitative studies, three were undertaken in the US (Block et al, 2010;Herbst-Damm and Kulik, 2005;Miceli and Mylod, 2003), two in Canada (Claxton-Oldfield et al, 2010;McGill et al, 1990); and one in the Netherlands (Luijkx and Shols, 2009). Of the qualitative studies, one was undertaken in Uganda (Jack et al, 2011) and one in Canada (Weeks et al, 2008). There were no studies conducted in the UK.…”