G Koeppen-Schomerus et al. Archives of Diseases in Childhood. November (2001), Vol. 85 #5 p 398.
In 1999 Genetics accounted for 70% of asthma diagnoses. It would be interesting and useful to know if the same proportion was still found now.
If an environmental cause of asthma diagnosis inflation is found then the maximum proportion would be 30% of cases.
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