Study on effects of extract in Naomaitong Formula on cerebral ischemia-reperfusion model based on NMR metabolomics Neuro-protective effect of Naomaitong to inflammatory cascade response after focal cerebral ischemia reperfusion in aged rats Effect of Naomaitong on Basilar Artery Rings and Portal Vein Strips Study on effects of extract in Naomaitong Formula on cerebral ischemia-reperfusion model based on NMR metabolomics Influences of Naomaitong upon Dog‘s Cerebral Blood Flow Neuro-protective effect of naomaitong to brain damage after focal cerebral isc hemia reperfusion (I/R) in the aged rats