RT Journal Article SR Electronic T1 Chronic arthritis associated with chromosome deletion 22q11.2 syndrome. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 2648 OP 2650 VO 29 IS 12 A1 Pirkko Pelkonen A1 Pekka Lahdenne A1 Risto Lantto A1 Visa Honkanen YR 2002 UL http://www.jrheum.org/content/29/12/2648.abstract AB