1. Primary hyperparathyroidism;Pyrah,1966
2. The role of the urologist in the management of primary hyperparathyroidism;Levinson;J. Int. Coll. Surg.,1964
3. Der hyperparathyreoidismus unter besonderer berücksiehtigung der ostitis fibrosa generalisata (Recklinghausen;Karcher;Ergebn. Chir. Orthop.,1958
4. Certain aspects of hyperparathyroidism;Black;Bol. Asoc. Med. P. Rico.,1953
5. Primary hyperparathyroidism. Clinical and structural findings in 138 cases;Hellström;Acta Chir. Scand.,1962