Hít một hơi thuốc lá, nuốt 100.000 tỷ gốc tự do
Các độc chất này nhiễm vào cơ thể sẽ phản ứng liên tục gây hại nhiều bộ phận, tổn thương màng tế bào, làm thay đổi cấu trúc DNA và chết tế bào...
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