Authors: Gratacos, J Collado, A Pons, F Osaba, M Sanmarti, R Roque, M Larrosa, M Munoz-Gomez, J

Citation: J. Gratacos et al., Significant loss of bone mass in patients with early, active ankylosing spondylitis - A followup study, ARTH RHEUM, 42(11), 1999, pp. 2319-2324