Sims, A. - M., Timms, A. E., Bruges-Armas, J., Burgos-Vargas, R., et al. (2008). Prospective meta-analysis of interleukin 1 gene complex polymorphisms confirms associations with ankylosing spondylitis. Annals of the Rheumatic Diseases, 67(9), 1305 - 1309.