4Pulsinelli WA,Buchan AM.The four-vessel occlusion rat model: method for complete occlusion cerebral arteries and control of collateral circulation.Stroke.1998,19(7): 913.
5Lee JM, Grabb MC, Zipfel GJ, et al.Brain tissue responses to isehemia.Clin Invest, 2000, 106 (6): 723.