1. Carboxyhaemoglobin levels in smokers of filter and plain cigarettes;Wald, N.; Idle, M.; Smith, P.G.; Bailey, A.;Lancet,1977
2. Carboxyhaemoglobin levels and inhaling habits in cigarette smokers;Wald, N.; Idle, M.; Bailey, A.;Thorax,1978
3. The epidemiology of lung cancer. Recent trends;Wynder, E.L.; Mabuchi, K.; Beattie, E.J.;JAMA,1970
4. "Tar" and nicotine content of cigarette smoke in relation to death rates;Hammond, E.C.; Garfinkel, L.; Seidman, H.; Lew, E.A.;Environ Res,1976
5. Mortality from lung cancer and coronary heart disease in relation to changes in smoking habits;Wald, N.J.;Lancet,1976