Trend in occurrence of asthma among children and young adults. Reporting of common respiratory and atopic symptoms has increased.
Russell
G
G
Helms
P J
PJ
D000293:Adolescent; D000328:Adult; D001249:Asthma / Q000453:epidemiology*; D001315:Australia / Q000453:epidemiology; D002648:Child; D002675:Child, Preschool; D006801:Humans; D006969:Hypersensitivity, Immediate / Q000453:epidemiology; D015995:Prevalence; D012135:Respiratory Sounds; D006113:United Kingdom / Q000453:epidemiology