USC (Ph.D. 1980)
USC/School of Medicine, Asst. Prof., Res. (1983-1995)
USC/School of Medicine, Vol. Assoc. Prof., Res. (1995-)
U. of Montana, Adj. Assoc. Prof. of Pharm. Sci., and Biol. Sci. (1996-)
Dir. CardioVas. Tiss. Eng. Lab., The Int. Heart Inst. of Montana Foundation (1996-)
CEO, Philogenesis, Inc. (2000-)
Peripheral vascular bypass xenografts
R&D of Cardiovascular Xenotransplants
CAB xenografts
xenograft heart valves