ملف:Asthma before-after.png

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 وصف قصير

During an asthma episode, inflamed airways react to environmental triggers such as smoke, dust, or pollen. The airways narrow and produce excess mucus, making it difficult to breathe.

Image from a FDA newsletter: http://www.fda.gov/fdac/features/2003/203_asthma.html Uploaded from w:Image:Asthma before-after.png

 Other version

قالب:Other versions/Asthma before-after

 ترخيص

هذه الصورة قد تم نشرها كمُلْكِيَّة عامَّة لأنها منتجة من قبل الحكومة الفيديرالية للولايات المتحدة الأمريكية. يسمح بالنشر في كافة انحاء العالم.