1. Trends in the prevalence and severity of childhood asthma;Anderson, H.R.; Butland, B.K.; Strachan, D.P.;BMJY,1994
2. Has the prevalence of asthma increased in children? Evidence from the national study of health and growth;Burney, P.G.J.; Chinn, S.; Rona, R.J.;BMJ,1973
3. National survey of prevalence of asthma among children in the United States, 1976 to 1980;Gergen, P.J.; Mullally, D.I.; Evans, R.;Pediatrics,1988
4. Increasing prevalence of asthma in children;Mitchell, E.A.,1983
5. Prevalence of childhood asthma in Taipei, Taiwan, and other Asian Pacific countries;Hsieh, K.-H.; Shen, J.-J.;J Asthma,1988