1. Tumours of the head and neck;Azey,1975
2. Tumours of the head and neck;Batsakis,1979
3. Tumours of the head and neck;Batsakis,1979
4. Hodgkin's and non-Hodgkin's lymphoma presenting in the head and neck;Bonadonna,1981
5. Statistical estimation of prognosis for children with neuroblastoma;Breslow;Cancer Res.,1971