title: Time trends in asthma and allergy: ten questions, fewer answers.
authors.forename: D P
authors.initials: DP
authors.lastname: Strachan
mesh_terms: D000367:Age Factors; D001249:Asthma / Q000453:epidemiology*; D006801:Humans; D006967:Hypersensitivity / Q000453:epidemiology*; D015995:Prevalence; D012307:Risk Factors