A Magnetic Resonance Imaging (MRI) Investigation of Cervical Spine Muscle Characteristics After Concussion: Identifying Return-to-Play Clearance and Subsequent Injury Prognosis. - Smulligan KL; Smith AC; Weber KA 2nd; Carry P; Esopenko C; Baugh CM; Elliott J; Snodgrass S; Wesselink EO; Wilson JC; Howell DR (Journal of child neurology, 2026)