RT Journal Article SR Electronic T1 Mortality in relation to smoking: 50 years’ observations on male British doctors JF Journal of Epidemiology and Community Health JO J Epidemiol Community Health FD BMJ Publishing Group Ltd SP 930 OP 930 VO 58 IS 11 A1 Doll, Richard A1 Peto, Richard A1 Boreham, Jillian A1 Sutherland, Isabelle YR 2004 UL http://jech.bmj.com/content/58/11/930.abstract AB