RT Journal Article SR Electronic T1 Cyclophosphamide in the management of advanced bronchial carcinoma. JF Thorax JO Thorax FD BMJ Publishing Group Ltd and British Thoracic Society SP 555 OP 561 DO 10.1136/thx.20.6.555 VO 20 IS 6 A1 R D McLean YR 1965 UL http://thorax.bmj.com/content/20/6/555.abstract AB