PT - JOURNAL ARTICLE AU - Caldwell B. Esselstyn, Jr. AU - George Crile, Jr. TI - Hyperparathyroidism—epidemic or endemic? DP - 1970 Apr 01 TA - Cleveland Clinic Journal of Medicine PG - 87--91 VI - 37 IP - 2 4099 - http://www.ccjm.org/content/37/2/87.short 4100 - http://www.ccjm.org/content/37/2/87.full SO - Cleve Clin J Med1970 Apr 01; 37