| 1 |
Smokeless tobacco and cancer |
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| | Boffetta, P., Hecht, S., Gray, N., Gupta, P., Straif, K. | | | The Lancet Oncology. 2008; 9(7): 667-675 | | | [Pubmed] [Google Scholar] | | | 2 |
Smokeless tobacco |
|
| | | | | IARC Monographs on the Evaluation of Carcinogenic Risks to Humans. 2007; 89: 41-417 | | | [Pubmed] [Google Scholar] | |
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