PT - JOURNAL ARTICLE ED - , TI - Correction DP - 1994 May 01 TA - Cleveland Clinic Journal of Medicine PG - 239--239 VI - 61 IP - 3 4099 - http://www.ccjm.org/content/61/3/239.short 4100 - http://www.ccjm.org/content/61/3/239.full SO - Cleve Clin J Med1994 May 01; 61