¹Ergonomic Technology Center, University of Connecticut Health Center, Farmington, CT USA

²Envir-O-Health Solutions, Ottawa, ON Canada

³Finnish Institute of Occupational Health, Helsinki, Finland

⁴Department of Otolaryngology, Tampere University Hospital, Tampere, Finland

⁵Department of Physical Medicine and Rehabilitation, North Karelia Central Hospital, Joensuu, Finland

⁶Department of Biomedical Engineering and Informatics, University Hospital, Umeå, Sweden

⁷Department of Occupational and Environmental Medicine, Sundsvall Hospital, Sundsvall, Sweden

⁸Department of Psychology, Umeå University, Umeå, Sweden

DOI: 10.17077/achv2010.1011