1. Deaths from asthma in England and Wales;Williams, D.A.;Thorax,1953
2. Observations on recent increase in mortality from asthma;Speizer, F.E.; Doll, R.; Heaf, P.,1968
3. Rise and fall of asthma mortality in England and Wales in relation to use of pressurised aerosols;Inman, W.H.W.; Adelstein, A.M.;Lancet,1969
4. The circumstances-preceding death from asthma in young people in 1968 to 1969. BrJ3 Dis Chest;Fraser, P.M.; Speizer, F.E.; Waters, S.D.M.; Doll, R.; Mann, N.M.,1971
5. Asthma mortality: why the United States was spared an epidemic of deaths due to asthma;Stolley, P.D.;Am Rev Respir Dis,1972