Motorcycle helmets associated with lower risk of cervical spine injury: debunking the myth.
Crompton JG, Bone C, Oyetunji T, Pollack KM, Bolorunduro O, Villegas C, Stevens K, Cornwell EE, Efron DT, Haut ER, Haider AH. Motorcycle helmets associated with lower risk of cervical spine injury: debunking the myth. J Am Coll Surg. 2011 Mar; 212(3):295-300.