20% Lung Cancer caused by Air Pollution - Attention please.

[ahlam1399]

http://i.ytimg.com/vi/YY9Rr8JLkKs/default.jpg (http://www.youtube.com/watch?v=YY9Rr8JLkKs&feature=youtube_gdata)
20% Lung Cancer caused by Air Pollution - Attention please. (http://www.youtube.com/watch?v=YY9Rr8JLkKs&feature=youtube_gdata)

Around 20% of lung cancer patients who eventually die in the city are exposed to high levels of air pollution, city doctors said, weeks after the WHO classif...
From:CVR NEWS (http://www.youtube.com/channel/UCixD-KrpjXtMupkzkdFFlFg)
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أكثر... (http://www.youtube.com/watch?v=YY9Rr8JLkKs&feature=youtube_gdata)