RT Journal Article SR Electronic T1 Sonographic Monitoring of Psoriatic Plaque JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 850 OP 851 DO 10.3899/jrheum.080739 VO 36 IS 4 A1 MARWIN GUTIERREZ A1 EMILIO FILIPPUCCI A1 CHIARA BERTOLAZZI A1 WALTER GRASSI YR 2009 UL http://www.jrheum.org/content/36/4/850.abstract AB