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. 2019 Oct 13;4(5):e000577. doi: 10.1136/esmoopen-2019-000577

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© Author (s) (or their employer(s)) 2019. Re-use permitted under CC BY-NC. No commercial re-use. Published by BMJ on behalf of the European Society for Medical Oncology.

This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, any changes made are indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

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Levels of evidence for implementation of lung cancer screening in Europe.4 Amended/updated in 2019 from a figure published in ref 4 in 2016. Colour codes: green: sufficient evidence; amber: borderline evidence. LDCT, low-dose CT; LLP, Liverpool Lung Project; MDT, multidisciplinary team; NELSON, Nederlands-Leuvens Longkanker Screenings Onderzoek; NICE, National Institute for Health and Care Excellence; NLST, National Lung Screening Trial; PLCO, Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial; QALY, quality-adjusted life year; UKLS, UK Lung Cancer Screening Trial; VDT, volume doubling time.