Positive nodal status is still a risk factor for long-term survivors of non-small cell lung cancer 5 years after complete resection - Yang, Young Ho; Kim, Ha Eun; Park, Byung Jo; Lee, Seokkee; Park, Seong Yong; Lee, Chang Young; Kim, Dae Joon; Paik, Hyo Chae; Lee, Jin Gu (Journal of Thoracic Disease; Vol 13, No 10 (October 31, 2021): Journal of Thoracic Disease, 2021)