Distinct gut microbiome in Ankylosing Spondylitis and AS-IBD patients compared with IBD and healthy controls. 1⃣Different alpha and beta-diversity in AS pts vs. IBD 2⃣TNFi use ➡️differentiation microbiome in IBD pts @RheumNow #ACR20 Abs#1310 https://t.co/AGZbJZ9jtR