A person may have a concussion.Logical formLearned from4 sentences. A concussion can be self-induced.Logical formLearned from4 sentences. Concussions may pertain-to players.Logical formLearned from4 sentences. A concussion can be an old news.Logical formLearned from4 sentences. A concussion may heal.Logical formLearned from4 sentences. Someone may have a concussion.Logical formLearned from4 sentences. Some games may recover from a concussion.Logical formLearned from4 sentences. Complications can be from concussions.Logical formLearned from4 sentences. A gun may undergo a concussion.Logical formLearned from4 sentences. A female may recover from a concussion.Logical formLearned from4 sentences. Some concussions may be reported.Logical formLearned from4 sentences. (Concussion rates) can be in (youth football).Logical formLearned from4 sentences. Some days can be with a concussion.Logical formLearned from4 sentences. Procedures can be for handling concussions.Logical formLearned from4 sentences. An injury may be diagnosed as a concussion.Logical formLearned from4 sentences.