RT Journal Article SR Electronic T1 Hyperparathyroidism—epidemic or endemic? JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 87 OP 91 VO 37 IS 2 A1 Esselstyn, Caldwell B. A1 Crile, George YR 1970 UL http://www.ccjm.org/content/37/2/87.abstract AB