1. Mannheim Institute of Public Health, Social and Preventive Medicine, Mannheim Medical Faculty, Heidelberg UniversityGermany
2. Institute of Occupational and Social Medicine, University of DüsseldorfGermany
3. Department of Medical SociologyUniversity of DüsseldorfGermany
4. Cluster of Excellence ‘‘Asia and Europe in a Global Context’’Heidelberg UniversityGermany
5. School of Public Health, Kunming Medical UniversityChina
6. International Centre for Life Course Studies in Society and Health, Department of Primary Care and Public HealthImperial College LondonUnited Kingdom