Journal Article ARTHRITIS AND THE GASTRO-INTESTINAL SYSTEM Get access E. D. R. CAMPBELL E. D. R. CAMPBELL Department of Physical Medicine and Rheumatology, Royal Free HospitalLondon Search for other works by this author on: Oxford Academic PubMed Google Scholar Rheumatology, Volume 7, Issue 4, November 1963, Pages 154–164, https://doi.org/10.1093/rheumatology/7.4.154 Published: 01 November 1963