RT Journal Article SR Electronic T1 The beginning of the end of the increase in mortality from carcinoma of the lung. JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 132 OP 138 DO 10.1136/thx.21.2.132 VO 21 IS 2 A1 V H Springett YR 1966 UL http://thorax.bmj.com/content/21/2/132.abstract AB