1) Cope O, Culver PJ, Mixter CG Jr, et al: Pancreatitis, a diagnostic clue to hyperparathyroidism. Ann Surg 145: 857-863, 1957
2) Mixter CG Jr, Keynes WM, Chir M, et al: Further experience with pancreatitis as a diagnostic clue to hyperparathyroidism. N Engl J Med 266: 265-272, 1962