Occupational and Environmental Medicine (OEM) is an international peer reviewed journal covering current developments in occupational and environmental health worldwide. Original contributions include: epidemiological studies of health concerns related to exposures in the workplace and the environment; human studies employing biological and genomic techniques to investigate the effects of such exposures; exposure assessment studies; evidence based research on the practice of occupational medicine, and new research methods. We also publish systematic reviews, editorials, commentaries, letters to the editor and a Cochrane Corner highlighting new reviews in the occupational health field.