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Increase nicotinic receptors in brains from smokers: membrane binding and autoradiography studies

Products like dip and chew contain over 28 cancer-causing chemicals, according to the World Health Organization

Case-controlled studies and cohort studies have not shown an increased risk [54, 55], while other epidemiological studies have reported associations with lung cancer with heavier marijuana use

CONFLICTS OF INTEREST The authors have completed and submitted an ICMJE form for disclosure of potential conflicts of interest and they declare that they have no competing interests, financial or otherwise, related to the current work

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