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The assessment of tobacco dependence in young users of smokeless tobacco
  1. Joseph R DiFranza1,
  2. Michael Sweet2,
  3. Judith A Savageau1,
  4. W W Sanouri Ursprung1
  1. 1Department of Family Medicine and Community Health, University of Massachusetts Medical School, Worcester, Worcester, Massachusetts, USA
  2. 2Newsome High School, Lithia, Florida, USA
  1. Correspondence to Dr Joseph R DiFranza, Department of Family Medicine and Community Health, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, Massachusetts, 01655, USA; difranzj{at}ummhc.org

Footnotes

  • Competing interests None.

  • Ethics approval This study was conducted with the approval of the University of Massachusetts Medical School.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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Footnotes

  • Competing interests None.

  • Ethics approval This study was conducted with the approval of the University of Massachusetts Medical School.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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