Related MeSH Hierarchy (6)
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) MeSH
Organization Involved with Phase 4 Indications (1)
Organization Involved with Phase 2 Indications (19)
Organization Involved with Other Experimental Indications (9)
Hierarchy Tree View
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