1. Bekampfung des Rauchens im Spital. Sozial und;Abelin, T.; Jossen, A.;Prdventivmedizin,1974
2. Smoking in hospitals;Ball, K.P.;Letter: British Medical Journal,1973
3. Mortality in relation to smoking. 20 years' observations on male British doctors;Doll, R.; Peto, R.;British Medical Journal,1976
4. Statistics of Smoking in the UK. Tobacco Research Council;Lee, P.N.,1976
5. A no-smoking ward is possible;Pang, A.;Postgraduate Medical Journal,1973