《英文msh詞典》Intermediate Concussions
[入口詞] Intermediate Concussions
[主題詞] Brain Concussion
[英文釋義] A nonspecific term used to describe transient alterations or loss of consciousness following closed head injuries. The duration of UNCONSCIOUSNESS generally lasts a few seconds,but may persist for several hours. Concussions may be classified as mild,intermediate,and severe. Prolonged periods of unconsciousness (often defined as greater than 6 hours in duration) may be referred to as post-traumatic coma (COMA,POST-HEAD INJURY). (From Rowland,Merritt's Textbook of Neurology,9th ed,p418)