Cortes N, Lincoln AE, Myer GD, Hepburn L, Higgins M, Putukian M. & Caswell SV. Video Analysis Verification of Head Impact Events Measured by Wearable Sensors. The American Journal of Sports Medicine. 2017;45(10):2379-2387<br />Wu LC, Zarnescu L, Nangia V, Cam B, & Camarillo, DB. A Head Impact Detection System Using SVM Classification and Proximity Sensing in an Instrumented Mouthguard. IEEE Transactions on Bio-Medical Engineering.2014;61(11):2659–2668