“…According to World Bank (Moore et al, 2007), we classified studies into high, middle and low income countries. Fourteen studies were categorized as a high income countries (Brown and Garber, 1999;Mandelblatt et al, 2002b;Maxwell et al, 2002;Goldie et al, 2004;Kim et al, 2005;Bidus et al, 2006;Bistoletti et al, 2008;Kulasingam et al, 2009;Berkhof et al, 2010;Chuck, 2010;Vijayaraghavan et al, 2010a;Sroczynski et al, 2011;Burger et al, 2012;de Kok et al, 2012).…”