Surgical Procedure

	Anesthetize a monkey and fix the head on stereotaxic. Disinfect all of surgical area and cover the area with sterilized drapes.
	Incise a skin with a cautery knife. The galea aponeurotica is cut at the center and gently peeled off from skull with the knife.
	The galea aponeurotica and temporal muscle are removed from skull with scraper until all of surgical area is exposed. Tissues on skull surface have to be wiped out and all of bleeding have to be completely stopped.
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