RT Journal Article SR Electronic T1 New feature: IM board review self-test JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 187 OP 187 VO 60 IS 3 A2 Longworth, David L. A2 Stoller, James K. YR 1993 UL http://www.ccjm.org/content/60/3/187.abstract AB