Sánchez A, Szczypiorska M, Juanola X, Bartolomé N, Gratacós J, Zarco P, Collantes E, Artieda M, Martínez A, Tejedor D, Mulero J. Association of the intergenic single-nucleotide polymorphism rs10865331 (2p15) with ankylosing spondylitis in a Spanish population. J Rheumatol 2010;37:2345–7. A note in the authors’ affiliations should read as follows: A. Sánchez and M. Szczypiorska contributed equally to this study. We regret the error.