RT Journal Article SR Electronic T1 Challenges in Economic Evaluation of Psoriatic Arthritis JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1086 OP 1088 DO 10.3899/jrheum.100164 VO 37 IS 6 A1 IGNAZIO OLIVIERI A1 SALVATORE D’ANGELO A1 CARLO PALAZZI A1 ANGELA PADULA YR 2010 UL http://www.jrheum.org/content/37/6/1086.abstract AB