@misc{indiciaed6190c7bf067, title = {Subgroups in psoriatic arthritis.}, author = {S M Jones and N J McHugh}, year = {1994}, doi = {10.1093/rheumatology/33.8.789}, url = {https://pubmed.ncbi.nlm.nih.gov/8055213/}, note = {Source identifier: 8055213} }