RT Journal Article SR Electronic A1 Vinall, Phil T1 PsA Best Practices in 2006 JF MD Conference Express YR 2006 FD SAGE Publications VO 6 IS 3 SP 31 OP 32 DO 10.1177/155989770600600318 UL http://mdc.sagepub.com/content/6/3/31.abstract AB Psoriatic arthritis (PsA) is a serious and progressive disease associated with significant morbidity and mortality. Defining outcome measures in PsA has been challenging because of the wide spectrum of clinical presentation, perceived low prevalence, and relapsing/remitting cycle. None of the current methods for defining outcome have been validated in PsA patients.