1. and 31 December 1985 were Results selected as cases. Altogether 1579 subjects met Due to the selection procedure and the differences these criteria. The control subjects were selected in age specific response rates between cases and from the Cracow death register as the first entry of controls (tables II, III), controls were on average the same sex and + 5 years of age following each slightly older than the cases. The mean age of case. Diseases of the respiratory tract cases was 63-3 (SD 12 6) years in males and 65-3 (International Classification of Diseases, ninth (11-1) in females. The corresponding values for revision,1980
2. Evaluation of the carcinogenic risk of chemicals to humans;Monographs, I.A.R.C.,1986
3. Rising lung cancer mortality among nonsmokers;Enstrom, J.E.;J Natl Cancer Inst,1979
4. Mutagenicity of airborne particles;Fulcino, H.; Mimura, S.; Inone, K.; Yamane, Y.;Mutation Res,1982
5. Correlation of mutagenic assessment ofHouston air particulate extracts in relation to lung cancer mortality rates;Walker, R.D.; Connor, T.H.; McDonald, E.J.;Environ Res,1982