PT - JOURNAL ARTICLE AU - William C. Sheldon TI - Assessment of left ventricular function DP - 1981 Mar 20 TA - Cleveland Clinic Journal of Medicine PG - 1--2 VI - 48 IP - 1 4099 - http://www.ccjm.org/content/48/1/1.short 4100 - http://www.ccjm.org/content/48/1/1.full SO - Cleve Clin J Med1981 Mar 20; 48