74
25. Sieper J, Klopsch T, Richter M, Kapelle A,
Rudwaleit M, Schwank S, et al. Comparison of two
different dosages of celecoxib with diclofenac for the
treatment of active ankylosing spondylitis: results of
a 12-week randomised, double-blind, controlled
study. Ann Rheum Dis 2008;67:323-9.
26. Peloso PM, Gammaitoni A, Smugar SS, Wang H,
Moore AR. Longitudinal numbers-needed-to-treat
(NNT) for achieving various levels of analgesic
response and improvement with etoricoxib,
naproxen, and placebo in ankylosing spondylitis.
BMC Musculoskelet Disord 2011;12:165.
27. Wanders A, van der Heijde D, Landewé R,
Béhier JM, Calin A, Olivieri I, et al. Nonsteroidal
antiinflammatory drugs reduce radiographic
progression in patients with ankylosing spondylitis:
a randomized clinical trial. Arthritis Rheum
2005;52:1756-65.
28. Roychowdhury B, Bintley-Bagot S, Bulgen DY,
Thompson RN, Tunn EJ, Moots RJ. Is methotrexate
effective in ankylosing spondylitis? Rheumatology
(Oxford) 2002;41:1330-2.
29. Gonzalez-Lopez L, Garcia-Gonzalez A, Vazquez-
Del-Mercado M, Muñoz-Valle JF, Gomez-Nava JI.
Efficacy of methotrexate in ankylosing spondylitis: a
randomized, double blind, placebo controlled trial. J
Rheumatol 2004;31:1568-74.