1. Department of Medical Informatics, Medizinische Hochschule Hannover, Hannover, Germany.
2. Prevention of Noncommunicable Diseases Department, World Health Organization, avenue Appia 20, 1211 Geneva 27, Switzerland.
3. Chemicals and Health Branch, United Nations Environment Programme, Geneva, Switzerland.
4. Department of Public Health, Environmental and Social Determinants of Health, World Health Organization, Geneva, Switzerland.