Xiaoshu Lu and  Esa-Pekka Takala and  Risto Toivonen,  Systematic Analysis of Dynamic Association of Health Outcomes with Computer Usage for Office Staff.   journal   = {International Journal of Medical and Health Sciences}, [online]. World Academy of Science, Engineering and Technology.
    May 2008, vol. 17(5). 146 - 149
    [viewed 23 October 2019]. Available from: https://publications.waset.org/pdf/13587.