1. Tumours of the upper respiratory tract and ear;Ash,1964
2. Craniopharyngioma: a histologic reassessment;Bernstein;Laboratory Investigation,1983
3. Rathke-cleft cysts;Berry;Archives of Neurology,1959
4. Tumors of the endocrine glands;Capen,1978
5. Endocrine system;Dellman,1981