| http://www.w3.org/ns/prov#value | - The athlete should also be monitored over the next few days after the injury for the presence of delayed signs and symptoms and to assess recovery.(9) Concussion severity should be determined by paying close attention to the severity and persistence of all signs and symptoms, including the presence of amnesia (retrograde and anterograde) and loss of consciousness, as well as headache, concentratio
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