among all hypercalcemic patients studied who had both elevated urinary cyclic amp and elevated parathyroid hormone ( pth ) levels by radioimmunoassay ( ria ) , 77 % had primary hyperparathyroidism , and 23 % had malignancy-associated hypercalcemia .
C0020437
hypercalcemic
C0149911
malignancy-associated hypercalcemia