RT Journal Article SR Electronic T1 Optimum low dose CT screening interval for lung cancer: the answer from NELSON? JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 6 OP 7 DO 10.1136/thoraxjnl-2016-209011 VO 72 IS 1 A1 Baldwin, David R A1 Duffy, S W A1 Devaraj, A A1 Field, J K YR 2017 UL http://thorax.bmj.com/content/72/1/6.abstract AB