“…Twenty-three studies provided traditional CBT (Burckhardt et al, 1994;Vlaeyen et al, 1996;Wigers et al, 1996;Nicassio et al, 1997;King et al, 2002;Soares and Grossi, 2002;Williams et al, 2002;Redondo et al, 2004;Edinger et al, 2005;Kashikar-Zuck et al, 2005;Thieme et al, 2006;Falcao et al, 2008;Castel et al, 2009Castel et al, , 2012Ang et al, 2010;Alda et al, 2011;Luciano et al, 2011;Miro et al, 2011;Kashikar-Zuck et al, 2012;Woolfolk et al, 2012;Martınez et al, 2014;Garcia-Palacios et al, 2015;Karlsson et al, 2015), three studies offered acceptance/mindfulness-based therapy (Parra-Delgado and Latorre-Postigo, 2013; Wicksell et al, 2013;Luciano et al, 2014) and two studies each provided self management education (Oliver et al, 2001;Rooks et al, 2007) and operant therapy (Thieme et al, 2003(Thieme et al, , 2006. All studies were conducted by live face-toface contact except one study which was delivered by telephone (voice-to-voice) (Ang et al, 2010).…”