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The number of asthma hospitalizations by age group (in multiples of the mean) in Canada graphed by the week of the year
The number of asthma hospitalizations by age group (in multiples of the mean) in Canada graphed by the week of the year
Reproduced from: Johnston NW, Johnston SL, Norman GR, et al. The September epidemic of asthma hospitalization: School children as disease vectors. J Allergy Clin Immunol 2006; 117:557. Copyright © 2006. Illustration used with the permission of Elsevier Inc. All rights reserved.
Graphic 60106 Version 3.0