Auto Accidents
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þ Do unbelted passengers kill people in the first seat?
 - 35 MPH crash, with belted driver and airbag:
   dummy studies show massive increases in force to chest and head of driver
 - Head-on or lateral crashes (excluded rollovers): increased fatality risk.
   2.7x increased odds of death of unbelted rearseat passenger.
   [Jehle D, SAEM 2004]