Comment on van Wijk et al

Authors

  • Siamak Sabour,

    1. Department of Clinical Epidemiology, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
    2. Safety Promotion & Injury Prevention Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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  • Fariba Ghassemi

    1. Farabi Eye Research Centre, School of Medicine, Tehran University of Medical Sciences, Iran
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  • Conflicts of interest

    None declared.

No abstract is available for this article.

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