TY  - RPRT
TI  - Subgroups in psoriatic arthritis.
AU  - S M Jones
AU  - N J McHugh
PY  - 1994
DO  - 10.1093/rheumatology/33.8.789
UR  - https://pubmed.ncbi.nlm.nih.gov/8055213/
ID  - 8055213
ER  -