1. National Public Health Institute, KTL Mannerheimintie
166 00300 Helsinki Finland, arja.aro@ktl.fi
2. Flemish Institute for Health Promotion Gustave Schildknechtstraat
9 1020 Brussels Belgium, stephan.vandenbroucke@vig.be
3. National Public Health Institute, KTL Mannerheimintie
166 00300 Helsinki Finland, sanna.raty@ktl.fi