PT - JOURNAL ARTICLE AU - Proft, Fabian AU - Käding, Henriette TI - Same, same or different? Commonalities and differences between spondyloarthritis and its subsets of axial and peripheral spondyloarthritis with psoriatic arthritis and its diverse phenotypes AID - 10.1136/rmdopen-2022-002872 DP - 2023 Apr 01 TA - RMD Open PG - e002872 VI - 9 IP - 2 4099 - http://rmdopen.bmj.com/content/9/2/e002872.short 4100 - http://rmdopen.bmj.com/content/9/2/e002872.full SO - RMD Open2023 Apr 01; 9