@article{1995137, title={Tetramethylpyrazine Improves Spatial Cognitive Impairment Induced by Permanent Occlusion of Bilateral Common Carotid Arteries or Scopolamine in Rats}, author={Jian-Wei Ni and Kinzo Matsumoto and Hiroshi Watanabe}, journal={The Japanese Journal of Pharmacology}, volume={67}, number={2}, pages={137-141}, year={1995}, doi={10.1254/jjp.67.137} }