1. Heidelberg Institute of Global Health, Heidelberg University, Germany
2. Institute for Social Medicine, Epidemiology and Health Economics, Charité – Universitätsmedizin Berlin, Germany
3. Institute for Clinical Epidemiology and Biometry, University of Würzburg, Germany
4. Institute for Health Resort Medicine and Health Promotion, Bavarian Health and Food Safety Authority (LGL), Bad Kissingen, Germany
5. Saw Swee Hock School of Public Health, National University of Singapore, Singapore