RT Journal Article SR Electronic T1 Can pain be quantified numerically? JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 2364 OP 2365 VO 33 IS 11 A1 Berger, Vance W YR 2006 UL http://www.jrheum.org/content/33/11/2364.abstract AB