asthma society of canada造句

The "'Asthma Society of Canada ( ASC ) "'is a non profit charity dedicated to enhancing the quality of life and health for people living with asthma and associated allergies through education and research.
The Asthma Society of Canada states that the Christmas and holiday season increases exposure to irritants because people spend 90 % of their time indoors, and that seasonal decorations in the home introduce additional, further, irritants beyond the ones that exist all year around.
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