RT Journal Article SR Electronic T1 Diagnostic Modalities, Surrogate Markers of Disease Activity, and Tools for Outcome Measurements JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP SII-171 OP SII-179 VO 69 IS 4 suppl 2 YR 2002 UL http://www.ccjm.org/content/69/4_suppl_2/SII-171.abstract AB