1. Carcinoma of the oral cavity. Factors affecting treatment failure at the primary site and neck;JP Shah;Am J Surg,1976
2. Recurrence at the primary site in head and neck cancer and the significance of neck lymph node metastasis as a prognostic factor;CR Leemans;Cancer,1994
3. Cervical lymph node metastasis, its diagnostic, therapeutic and prognostic implications;JP Shah;Oncol Williston Park,1990
4. Prognostic significance of lymphatic spread in head and neck carcinomas: therapeutic implications;C Grandi;Head Neck Surg,1985
5. Detection of minimal residual cancer to investigate why oral tumors recur despite seemingly adequate treatment;M Partridge;Clin Cancer Res,2000