Ammann, Y., U. Beutner, D. G. Vital, G. Morand, M. A. Broglie Daeppen, D. Born, S. J. Stoeckli, and G. F. Huber. “Impact of the New TNM Staging System (8th Edition) on Oral Tongue Cancers”. Swiss Medical Weekly, vol. 151, no. 1516, Apr. 2021, p. w20493, doi:10.4414/smw.2021.20493.