| http://www.w3.org/ns/prov#value | - cal activity) and chemoprevention strategies (e.g., antioxidants).9 However, the most controversial method of harm reduction is encouraging smokers to switch from cigarette smoking to other forms of tobacco, such as smokeless tobacco,10,11 a known human carcinogen.12,13Although switching from cigarettes to smokeless tobacco reduces risk related to heart disease and lung cancer,14,15 critics of thi
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