RT Journal Article SR Electronic T1 Macrophage activation syndrome after etanercept treatment. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 241 OP 242 VO 34 IS 1 A1 Charanjit Sandhu A1 Alden Chesney A1 Eugenia Piliotis A1 Rena Buckstein A1 Sharon Koren YR 2007 UL http://www.jrheum.org/content/34/1/241.abstract AB