1. Epidemiological effects of oxides of nitrogen, especially NO2;Ackermann-Liebrich,1999
2. California Environmental Protection Agency and Air Resources Board and Office of Environmental Health and Hazard Assessment (2007) Review of the California air quality standard for nitrogen dioxide, Technical support document, January 5.
3. Differences in heart rate variability associated with long-term exposure to NO2;Felber Dietrich;Environmental Health Perspectives,2008
4. Urban air pollution and mortality in a cohort of Norwegian men;Nafstad;Environmental Health Perspectives,2004
5. Exposure to traffic and the onset of myocardial infarction;Peters;New England Journal of Medicine,2004