RT Journal Article SR Electronic T1 Ultrasound imaging--a requirement for rheumatologists. JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 862 OP 863 VO 29 IS 4 A1 Juan J Canoso YR 2002 UL http://www.jrheum.org/content/29/4/862.abstract AB