![John Holmes](/newimages/person-profile/2022b/uofs-john-holmes.x1f8525d5.jpg?w=160&h=160&f=webp)
Professor John Holmes
University of Sheffield
Research
![NIHR 780x440 Thumbnail](/newimages/research/thumb/nihr-780x440-thumbnail.xcf49f473.jpg?width=380&height=215&fit=crop&f=webp)
NIHR Policy Research Unit in Addictions
Addictive products, behaviours and systems
Research
![NIHR 780x440 Thumbnail](/newimages/research/thumb/nihr-780x440-thumbnail.xcf49f473.jpg?width=380&height=215&fit=crop&f=webp)
NIHR Policy Research Unit in Addictions
Addictive products, behaviours and systems
University of Sheffield
Addictive products, behaviours and systems
Addictive products, behaviours and systems