Zuber M, Löliger M, Boner H, Haas H G
Schweiz Med Wochenschr. 1986 May 10;116(19):642-7.
In a 71-year-old patient with osteomalacia, masked primary hyperparathyroidism was detected by vitamin D therapy for hypercalcemia. Surgery revealed a parathyroid tumor. Interpretation of total plasma calcium may be difficult unless the 25-hydroxyvitamin D levels are outside the normal range.
