RT Journal Article SR Electronic T1 The Problem of Rheumatod Arthritis Disease Activity and Remission in Clinical Practice JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 454 OP 454 VO 39 IS 2 YR 2012 UL http://www.jrheum.org/content/39/2/454.2.abstract AB