Prevalence and distribution of peripheral musculoskeletal manifestations in spondyloarthritis including psoriatic arthritis: results of the worldwide, cross-sectional ASAS-PerSpA study (2021)
https://pubmed.ncbi.nlm.nih.gov/33462157/

Axial and peripheral spondyloarthritis: does psoriasis influence the clinical expression and disease burden? Data from REGISPONSER registry (2021)
https://pubmed.ncbi.nlm.nih.gov/32856083/

An Assessment in SpondyloArthritis International Society (ASAS)-endorsed definition of clinically important worsening in axial spondyloarthritis based on ASDAS. (2018)
https://pubmed.ncbi.nlm.nih.gov/29038299/

Cardiovascular risk factors in patients with spondyloarthritis from Northern European and Mediterranean countries: An ancillary study of the ASAS-COMOSPA project. (2018)
https://pubmed.ncbi.nlm.nih.gov/28754402/