title: Investigating stroke.
mesh_terms: D000368:Aged; D001932:Brain Neoplasms / Q000000981:diagnostic imaging*; D002561:Cerebrovascular Disorders / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D006408:Hematoma, Subdural / Q000000981:diagnostic imaging; D006801:Humans; D011859:Radiography