1. UICC, T.U.f.I.C.C. TNM History, Evolution and Milestones; 2017; Available from: https://www.uicc.org/sites/main/files/atoms/files/TNM_History_updated_June2017.pdf.
2. Note on the possible role of the International Union against Cancer in nomenclature, classification, analytical index, bibliography and documentation;Denoix;Acta Unio Int Contra Cancrum,1952
3. Amin MB, Edge S, Greene FL, et al., eds. AJCC Cancer Staging Manual, 8th ed., New York; 2017.
4. Head and Neck cancers-major changes in the American Joint Committee on cancer eighth edition cancer staging manual;Lydiatt;CA Cancer J Clin,2017
5. Depth of invasion as a predictive factor for cervical lymph node metastasis in tongue carcinoma;Fukano;Head Neck,1997