Efficacy, cost-utility and physiological effects of Acceptance and Commitment Therapy (ACT) and Behavioural Activation Treatment for Depression (BATD) in patients with chronic low back pain and depression: study protocol of a randomised, controlled trial including mobile-technology-based ecological momentary assessment (IMPACT study).

Sanabria-Mazo, Juan P; Forero, Carlos G; Cristobal-Narvaez, Paula; Suso-Ribera, Carlos; Garcia-Palacios, Azucena; Colomer-Carbonell, Ariadna; Perez-Aranda, Adrian; Andres-Rodriguez, Laura; McCracken, Lance M; D’Amico, Francesco; Estivill-Rodriguez, Pere;...