TY - JOUR AU - Breban, M TI - Maintenance of infliximab treatment in ankylosing spondylitis. Results of a one-year randomized controlled trial comparing systematic versus on-demand treatment JO - Arthritis Rheum VL - 58 PY - 2008 DO - 10.1002/art.23167 L3 - PubMed-ID: 18163509 SP - 88 EP - 97. N1 - et al. ER -