參考文獻:
Joensson, Stig Andersson, Gunnar Fex, Tomas Fristedt, Tomas Hedlund, Gunnar Jansson, Karl Abramo, Lisbeth Fritzson, Ingela Pekarski, Olga Runstroem, Anna Sandin, Helena Thuvesson, Ingela Bjoerk, Anders Journal of Medicinal Chemistry, 2004 , vol. 47, # 8 p. 2075 - 2088