Ansell, R.C., T. Shuto, N. Busquets-Perez, E.M.A. Hensor, H. Marzo-Ortega, and D. McGonagle. 2016. “The Role of Biomechanical Factors in Ankylosing Spondylitis: The patient’s Perspective”. Reumatismo 67 (3):91-96. https://doi.org/10.4081/reumatismo.2015.853.