1. Metastatic tumours in the thyroid gland;Willis;Am J Pathol,1931
2. Exogenous tumours of the thyroid gland;Mayo;Am J Pathol,1941
3. Metastatic neoplasms in the thyroid gland;Shimaoka;Cancer,1962
4. Incidence of thyroid cancer and problem of malignancy in nodular goitre;Sokal,1960
5. Critical analysis of 221 thyroid glands; study of thyroid glands obtained at necropsy in Colorado;Hull;AMA Arch Path,1955