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مشاهدة النسخة كاملة : Rare 'healthy' smokers lungs explained


BECKHAM
28-09-2015, 04:08 AM
The mystery of why some people appear to have healthy lungs despite a lifetime of smoking has been explained by scientists.

for more .... (http://www.bbc.co.uk/news/health-34360865#sa-ns_mchannel=rss&ns_source=PublicRSS20-sa)