1. Primary hyperparathyroidism: incidence, morbidity, and potential economic impact in a community;Health;N Engl J Med,1980
2. Hyperparathyroidism in the elderly;Tibblin;Ann Surg,1983
3. Clinical and experimental advances in sporadic primary hyperparathyroidism;Akerström;Acta Chir Scand,1990
4. Surgical treatment of primary hyperparathyroidism in the elderly patient;Nudelman;Isr J Med Sci,1983
5. Le nouveau visage clinique de l'hyperparathyroïdie primitive. Circonstances de diagnostic et caractères symptomatiques actuels: résultats d'une enquête multicentrique;Villiaumey;Rev Rhumatisme,1988