1. The Health Consequences of Using Smokeless Tobacco;U.S. Department of Health and Human Services,1986
2. Preventing Tobacco Use Among Young People: A Report of the Surgeon General (link is external);U.S. Department of Health and Human Services,1994
3. Swedish snus and the GothiaTek® standard;Rutqvist;Harm Reduct J,2011
4. Stanfill SB, Chapter 8, this volume.
5. Hecht SS, Chapter 7, this volume.