TY - GEN AU - Luo,T David AU - Clarke,Michelle J AU - Zimmerman,Amy K AU - Quinn,Michael AU - Daniels,David J AU - McIntosh,Amy L TI - Concussion symptoms in youth motocross riders: a prospective, observational study SN - 1933-0715 PY - 2015///0601 KW - Accidents KW - Adolescent KW - Adult KW - Athletic Injuries KW - complications KW - Brain Concussion KW - diagnosis KW - Child KW - Female KW - Head Protective Devices KW - statistics & numerical data KW - Humans KW - Incidence KW - Male KW - Motorcycles KW - Off-Road Motor Vehicles KW - Prospective Studies KW - Risk Factors KW - Surveys and Questionnaires N1 - Publication Type: Journal Article; Observational Study UR - https://doi.org/10.3171/2014.11.PEDS14127 ER -