“…In clinical management of chronic pain, a bio-psycho-social model (Gatchel et al, 2007) is preferred since the above mentioned complex blend of factors -neurobiological, psychological (e.g., depression, catastrophizing, and anxiety), coping styles, and contextual factors -contribute to the development and maintenance of chronic pain (Alonso et al, 2004;Asmundson & Katz, 2009;Börsbo et al, 2008;Dersh et al, 2001;Ericsson et al, 2002;MeansChristensen et al, 2008;Ocañez et al, 2010;Sofat et al, 2011;Sullivan et al, 2001). …”