1. Allergen exposure and asthma
Magnus Wickman, Magnus Swartengren 
The Lancet 
Volume 357, Issue 9261, (March 2001)
DOI: /S (05)
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2. Figure
Quartiles of early exposure to cat allergen and development of asthma at age 7 years
Constructed from data table 3 of Lau and colleagues. Quartile 1=<0·015-0·055 μg/g (reference level), quartile 2=0·055-<0·215 μ/g, and quartile 4=0· μ/g
The Lancet  , DOI: ( /S (05) )
Copyright © 2001 Elsevier Ltd Terms and Conditions