RT Journal Article SR Electronic T1 Defining Criteria for Macrophage Activation Syndrome, a Process Towards Early Recognition and Treatment JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 593 OP 594 DO 10.3899/jrheum.101269 VO 38 IS 4 A1 NICO M. WULFFRAAT YR 2011 UL http://www.jrheum.org/content/38/4/593.abstract AB