PT  - JOURNAL ARTICLE
AU  - Philip S Helliwell
AU  - GRAPPA Group
TI  - GRAPPA--Group for Research and Assessment of Psoriasis and Psoriatic Arthritis, Stockholm, May/June 2006.
DP  - 2007 Jan 01
TA  - The Journal of Rheumatology
PG  - 214--219
VI  - 34
IP  - 1
4099  - http://www.jrheum.org/content/34/1/214.short
4100  - http://www.jrheum.org/content/34/1/214.full
SO  - J Rheumatol2007 Jan 01; 34