1. Centre for Alcohol Policy Research, La Trobe University, Melbourne, Australia;
2. Addiction Switzerland, Research Institute, Lausanne, Switzerland;
3. Idiap Research Institute, Martigny, Switzerland;
4. Department of Human Geography, Zurich University, Zurich, Switzerland;
5. Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland;
6. Behavioural Science Institute, Radboud University, HE Nijmegen, the Netherlands