參考文獻:
Khanna, Ish K. Weier, Richard M. Yu, Yi Xu, Xiang D. Koszyk, Francis J. Collins, Paul W. Koboldt, Carol M. Veenhuizen, Amy W. Perkins, William E. Casier, Jacquelen J. Masferrer, Jaime L. Zhang, Yan Y. Gregory, Susan A. Seibert, Karen Isakson, Peter C. Journal of Medicinal Chemistry, 1997 , vol. 40, # 11 p. 1634 - 1647