1. Institute of Social Medicine, Epidemiology, and Health Economics, Charité–Universitätsmedizin Berlin, Berlin, Germany (Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany).
2. Department of Psychiatry, Psychosomatics, and Psychotherapy, Diakoniekliniken, Zschadrass, Germany.
3. Department of Internal and Integrative Medicine, Immanuel Hospital Berlin, Berlin, Germany.
4. Center for Integrative Medicine and Planetary Health, University Hospital Essen, University of Duisburg-Essen, Germany.