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In a best-evidence synthesis (1980-2006), to better understand the burden and determinants of neck pain due to WAD after traffic collisions, researchers found that the incidence of WAD has increased in western countries over the past 30 years and is likely to be at 300 per 100,000 inhabitants in North America and western Europe (Holm et al., 2008).Protective Devices: Types, Uses and Safety - PDF Free In a best-evidence synthesis (1980-2006), to better understand the burden and determinants of neck pain due to WAD after traffic collisions, researchers found that the incidence of WAD has increased in western countries over the past 30 years and is likely to be at 300 per 100,000 inhabitants in North America and western Europe (Holm et al., 2008).

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