“…For example, US-American (Green et al, 2001), Canadian (Zarkadas et al, 2006) and Swedish studies (Roos, Karner & Hallert, 2006) report an average HRQoL for adult celiac sufferers comparable with the general population; whereas studies conducted in Italy (Fera et al, 2003) Northern Ireland (O'Leary et al, 2002 and Germany (Häuser et al, 2006) demonstrate a reduced HRQL compared with the general population or healthy controls.…”