[1] Univ Calif Davis, Sch Vet Med, Dept Anat Physiol Cell Bio, Davis, CA 95616 USA
[2] Louisiana State Univ, Sch Med, Dept Surg, Shreveport, LA USA
[3] Univ Tubingen, Dept Surg, Tubingen, Germany
[4] Univ Calif Los Angeles, Sch Med, CURE, Los Angeles, CA USA
[5] Univ Cincinnati, Dept Pathol, Cincinnati, OH USA