Motorcycle helmets save lives, but not limbs: a National Trauma Data Bank analysis of functional outcomes after motorcycle crash.
Crompton JG, Oyetunji T, Stevens KA, Efron DT, Haut ER, Haider AH. Motorcycle helmets save lives, but not limbs: a National Trauma Data Bank analysis of functional outcomes after motorcycle crash. J Surg Res. 2010 Jan; 158(1):1-5.