1. Associations between respiratory symptoms, bronchial response to methacholine and atopy in two age groups of schoolchildren;Clifford, R.D.; Howell, J.B.; Radford, M.; Holgate, S.T.;Arch Dis Child,1989
2. Childhood asthma in New Zealand;Jones, D.T.; Sears, M.R.; Holdsway, M.D.; Hewitt, C.J.; Flannery, E.M.; Herbison, G.P.;Br J Dis Chest,1987
3. Prevalence of asthma in Melbourne schoolchildren: change over 26 years;Robertson, C.F.; Heycock, E.; Bishop, J.; Nolan, T.; Olinsky, A.; Phelan, P.D.;BMJ,1991
4. Changes in asthma prevalence: two surveys 15 years apart;Burr, M.L.; Butland, B.K.; King, S.; Vaughan-Williams, E.;Arch Dis Child,1989
5. Respiratory symptoms and atopy in Aberdeen schoolchildren: evidence from two surveys 25 years apart;Ninan, T.K.; Russell, G.;BMJ,1992