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Why tobacco is dangerous, Tobacco (smoking + smokeless) is the major cause of oral cancer. Around 90% of oral cancers are linked to tobacco use., Harmful chemicals in tobacco, Tobacco contains What chemicals are in a cigarette? What does smoking do to your body? Cancer Research UK Cancer Impact Good Medicine Keepers Carcinogenic mechanisms of smoking in lung cancer. Abbreviations: PAHs, Download Scientific Diagram 4 ways tobacco is devastating the environment NCD Alliance

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