Chansky, K, Detterbeck, F C, Nicholson, A G, Rusch, V W, Vallières, E, Groome, P, Kennedy, C, Krasnik, M, Peake, M, Shemanski, L, Bolejack, V, Crowley, J J, Asamura, H, Rami-Porta, R, IASLC Staging and Prognostic Factors Committee, Advisory Boards, and Participating Institutions & Jakobsen, E 2017, ' The IASLC Lung Cancer Staging Project : External Validation of the Revision of the TNM Stage Groupings in the Eighth Edition of the TNM Classification of Lung Cancer ', Journal of Thoracic Oncology, vol. 12, no. 7, pp. 1109-1121 . https://doi.org/10.1016/j.jtho.2017.04.011 Journal of thoracic oncology