1. Goldstraw P, Chansky K, Crowley J, Rami-Porta R, Asamura H, Eberhardt WE, et al. The IASLC Lung Cancer Staging Project: Proposals for Revision of the TNM Stage Groupings in the Forthcoming (Eighth) Edition of the TNM Classification for Lung Cancer. J Thorac Oncol. 2016;11:39-51. doi:10.1016/j.jtho.2015.09.009.
2. National Comprehensive Cancer Network. (NCCN) Clinical Practice Guidelines in Oncology. Non-Small Cell Lung Cancer, Version 1. 2020. https://www.nccn.org/professionals/physician_gls/default.aspx. Accessed 6 Nov 2019.
3. Preoperative chemotherapy for non-small-cell lung cancer: a systematic review and meta-analysis of individual participant data. Lancet (London, England). 2014;383:1561-71. doi:10.1016/s0140-6736(13)62159-5.
4. Arriagada R, Bergman B, Dunant A, Le Chevalier T, Pignon JP, Vansteenkiste J. Cisplatin-based adjuvant chemotherapy in patients with completely resected non-small-cell lung cancer. The New England journal of medicine. 2004;350:351-60. doi:10.1056/NEJMoa031644.
5. Pignon JP, Tribodet H, Scagliotti GV, Douillard JY, Shepherd FA, Stephens RJ, et al. Lung adjuvant cisplatin evaluation: a pooled analysis by the LACE Collaborative Group. J Clin Oncol. 2008;26:3552-9. doi:10.1200/jco.2007.13.9030.
6. Scagliotti GV, Pastorino U, Vansteenkiste JF, Spaggiari L, Facciolo F, Orlowski TM, et al. Randomized phase III study of surgery alone or surgery plus preoperative cisplatin and gemcitabine in stages IB to IIIA non-small-cell lung cancer. J Clin Oncol. 2012;30:172-8. doi:10.1200/jco.2010.33.7089.
7. Song WA, Zhou NK, Wang W, Chu XY, Liang CY, Tian XD, et al. Survival benefit of neoadjuvant chemotherapy in non-small cell lung cancer: an updated meta-analysis of 13 randomized control trials. J Thorac Oncol. 2010;5:510-6. doi:10.1097/JTO.0b013e3181cd3345.
8. Uy KL, Darling G, Xu W, Yi QL, De Perrot M, Pierre AF, et al. Improved results of induction chemoradiation before surgical intervention for selected patients with stage IIIA-N2 non-small cell lung cancer. The Journal of thoracic and cardiovascular surgery. 2007;134:188-93. doi:10.1016/j.jtcvs.2007.01.078.
9. Chen Z, Xiong S, Li J, Ou L, Li C, Tao J, et al. DNA methylation markers that correlate with occult lymph node metastases of non-small cell lung cancer and a preliminary prediction model. Transl Lung Cancer Res. 2020;9:280-7. doi:10.21037/tlcr.2020.03.13.
10. Vaghjiani RG, Takahashi Y, Eguchi T, Lu S, Kameda K, Tano Z, et al. Tumor Spread Through Air Spaces Is a Predictor of Occult Lymph Node Metastasis in Clinical Stage IA Lung Adenocarcinoma. J Thorac Oncol. 2020;15:792-802. doi:10.1016/j.jtho.2020.01.008.
11. Martini N, Flehinger BJ, Zaman MB, Beattie EJ, Jr. Results of resection in non-oat cell carcinoma of the lung with mediastinal lymph node metastases. Annals of surgery. 1983;198:386-97. doi:10.1097/00000658-198309000-00015.
12. Andre F, Grunenwald D, Pignon JP, Dujon A, Pujol JL, Brichon PY, et al. Survival of patients with resected N2 non-small-cell lung cancer: evidence for a subclassification and implications. J Clin Oncol. 2000;18:2981-9. doi:10.1200/jco.2000.18.16.2981.
13. Kim MP, Correa AM, Hofstetter WL, Mehran RJ, Rice DC, Roth JA, et al. Occult stage IIIA-N2 patients have excellent overall survival with initial surgery. J Thorac Dis. 2018;10:6670-6. doi:10.21037/jtd.2018.10.94.
14. Yang CF, Kumar A, Gulack BC, Mulvihill MS, Hartwig MG, Wang X, et al. Long-term outcomes after lobectomy for non-small cell lung cancer when unsuspected pN2 disease is found: A National Cancer Data Base analysis. The Journal of thoracic and cardiovascular surgery. 2016;151:1380-8. doi:10.1016/j.jtcvs.2015.12.028.
15. Kim HK, Choi YS, Kim K, Shim YM, Park K, Ahn YC, et al. Outcomes of mediastinoscopy and surgery with or without neoadjuvant therapy in patients with non-small cell lung cancer who are N2 negative on positron emission tomography and computed tomography. J Thorac Oncol. 2011;6:336-42. doi:10.1097/JTO.0b013e318201212e.
16. Whitson BA, Groth SS, Maddaus MA. Recommendations for optimal use of imaging studies to clinically stage mediastinal lymph nodes in non-small-cell lung cancer patients. Lung cancer (Amsterdam, Netherlands). 2008;61:177-85. doi:10.1016/j.lungcan.2007.12.019.