1. Mortality from asthma: a new epidemic in New Zealand;Jackson, R.T.; Beaglehole, R.; Rea, H.H.; Sutherland, D.C.;BMJ,1982
2. Asthma mortality in England and Wales: evidence for a further increase;Burney, P.G.J.;Lancet,1974
3. Fall and rise in asthma mortality in Italy, 1968-84;C, La Vecchia; M, Fasoli; E, Negri; G, Tognoni;Int J Epidemiol,1989
4. Prescribed fenoterol and death from asthma in New Zealand, 1981-83: case-control study;Crane, J.; Pearce, N.; Flatt, A.;Lancet,1989
5. Observations on recent increase in mortality from asthma;Speizer, F.E.; Doll, R.; Heaf, P.;BMJ,1968