RT Journal Article SR Electronic T1 Composite Measures of Impact and Activity in Psoriatic Arthritis: A Conceptual Framework JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 268 OP 270 DO 10.3899/jrheum.161544 VO 44 IS 3 A1 WILLIAM TILLETT YR 2017 UL http://www.jrheum.org/content/44/3/268.abstract AB