Fig. 2From: A longitudinal study of fecal calprotectin and the development of inflammatory bowel disease in ankylosing spondylitis a Scatterplot of fecal calprotectin at baseline and 5-year follow-up in 164 patients with ankylosing spondylitis (AS). b Fecal calprotectin before and after a 3-week pause of nonsteroidal anti-inflammatory drug (NSAID) use at 5-year follow-up in 33 patients with ASBack to article page