1. 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
2. Investigation into use of drugs preceding death from asthma;Speizer, F.E.; Doll, R.; Heaf, P.; Strang, L.B.;Br MedJ,1968
3. Why the United States was spared an epidemic of deaths due to asthma;Stolley, P.D.;Am Rev Respir Dis,1972
4. Has the change to beta-agonists combined with oral theophylline increased the cases of fatal asthma ?;Wilson, J.D.; Sutherland, D.C.; Thomax, C.;Lancet,1981
5. Circumstances preceding death from asthma in young people;Fraser, P.M.; Speizer, F.E.; Walters, S.D.M.; Doll, R.; Mann, M.N.;Br J Dis Chest,1971