Susceptibility to ankylosing spondylitis: no evidence for the involvement of transforming growth factor b1 (TGFB1) gene polymorphisms

M van der Paardt, J B A Crusius, M A Garcia-Gonzalez, B A C Dijkmans, A S Peña, I E van der Horst-Bruinsma
Ann Rheum Dis 2005;64:616–619. doi: 10.1136/ard.2004.027698