@article {4615, title = {Protective effect of an ERAP1 haplotype in ankylosing spondylitis: Investigating non-MHC genes in HLA-B27-positive individuals}, journal = {Rheumatology (United Kingdom)}, volume = {52}, year = {2013}, note = {Export Date: 8 April 2014Source: ScopusArt. No.: ket269}, month = {2013}, pages = {2168 - 2176}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84887669101\&partnerID=40\&md5=cfc19a3d6d49b44450b78d40c59c0514}, author = {Bettencourt, B.F. and Rocha, F.L. and Alves, H. and Amorim, R. and Caetano-Lopes, J. and Vieira-Sousa, E. and Pimentel-Santos, F. and Lima, M. and Porto, G. and Branco, J.C. and Fonseca, J.E. and Bruges-Armas, J.} }