@article {2886, title = {Epidemiology of chronic pain: A population-based nationwide study on its prevalence, characteristics and associated disability in Portugal}, journal = {Journal of Pain}, volume = {13}, year = {2012}, note = {Export Date: 18 March 2013Source: Scopus}, month = {2012///}, pages = {773 - 783}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84864477284\&partnerID=40\&md5=029838b174315d224158e8f02cbba3b6}, author = {Azevedo, L. F. and Costa-Pereira, A. and Mendon{\c c}a, L. and Dias, C. C. and Castro-Lopes, J.M.} }