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2. Cigarette smoking and cancers of the urinary tract: geographic variation in the United States;Fraumeni, J.F.;J Nat! Cancer Inst,1968
3. Estimation of relative risk from vital data: smoking and cancers of the lung and bladder;Stevens, R.G.; Moolgavkar, S.H.;J. Natl Cancer Inst,1979
4. Bladder cancer mortality in England and Wales in relation to cigarette smoking and saccharin consumption;Armstrong, B.; Doll, R.;Br J Prev Soc Med,1974
5. The Dorn study of smoking and mortality among UJnited States veterans;Khan, H.A.;Natl Cancer Inst Monogr,1960