the prevalence of asthma and allergic rhinitis was analysed in relation to birth month in two cohorts of 18-year-old males born in 1953 ( n = 55,393 ) and 1963 ( n = 57,150 ) , in schoolchildren ( n = 19,814 ) and in children with defined specific allergies ( n = 1080 ) .
C0004096
asthma
C1334103
allergic rhinitis