The Concussion Injury Research and Evaluation Clinic is looking for participants between the ages of 9 and 25 who are physically active and/or involved in organized sport to participate in research that investigates concussion and return-to-play. Study participants must be available for two (2) hour-long testing appointments spaced at least two weeks apart. Visit upei.ca/concussion for more information. Email concussion@upei.ca for inquiries or to schedule an appointment.