Calderon, Silvia N.; Rice, Kenner C.; Rothman, Richard B.; Porreca, Frank; Flippen-Anderson, Judith L.; Kayakiri, Hiroshi; Xu, Heng; Becketts, Karen; Smith, Larren E.; Bilsky, Edward J.; Davis, Peg; Horvath, Robert
Journal of Medicinal Chemistry, 1997 , vol. 40, # 5 p. 695 - 704