Circulating levels of interleukin-6 and tumor necrosis factor-alpha are elevated in primary hyperparathyroidism and correlate with markers of bone resorption - a clinical research center study. - Grey,A.; Mitnick,M.A.; Shapses,S.; Ellison,A.; Gundberg,C.; Insogna,K. (J Clin Endocrinol Metab, 1996)