| The search strategy for MEDLINE (Ovid) was: 1 Spondylitis, Ankylosing/ 2 (bechtere$ disease$ or marie‐struempell disease$ or rheumatoid spondylitis or spondylarthritis ankylopoietica or ankylo$ spondyl$ or Spin$ Ankylosis or Vertebral Ankylosis.tw. 3 1 or 2 4 (Salazosulfapyridine or sulfasalazine or Sulfosalazine or Sulfasal#zine or Salazopyridin$ or asulfidine or azulf#dine).tw. 5 sulfasalazine/ 6 Sulfasalazine.rn. 7 or/4‐6 8 3 and 7 9 from 8 keep 1‐132 | The search strategy for EMBASE (Ovid) was: 1 Spondylitis, Ankylosing/ 2 (bechtere$ disease$ or marie‐struempell disease$ or rheumatoid spondylitis or spondylarthritis ankylopoietica or ankylo$ spondyl$ or Spin$ Ankylosis or Vertebral Ankylosis).tw. 3 1 or 2 4 Salazosulfapyridine/ 5 (Salazosulfapyridine or sulfasalazine or Sulfosalazine or Sulfasal#zine or Salazopyridin$ or asulfidine or azulf#dine).tw. 6 4 or 5 7 3 and 6 8 from 7 keep 1‐307 |
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