They also calculated impact dose injury risk parameters common to laboratory and on-field traumatic neuromechanics: linear acceleration, angular acceleration, angular velocity, Gadd Severity Index, diffuse axonal injury, acute subdural hematoma, and brain contusion.

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The bureau calculated and cross-referenced lifetime earnings for each major and each career field by grouping survey respondents into eight age buckets consisting of five years, determined the median annual earnings for each age group, multiplied the number by five, and added the totals together.

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