RT Journal Article SR Electronic T1 The no man's land of undifferentiated inflammatory polyarthritis. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1673 OP 1675 VO 31 IS 9 A1 Stephen A Paget YR 2004 UL http://www.jrheum.org/content/31/9/1673.abstract AB