[1] Kansas State Univ, Coll Vet Med, Dept Anat & Physiol, Inst Computat Comparat Med,Food Anim Residue Avoi, Manhattan, KS 66506 USA
[2] North Carolina State Univ, Ctr Chem Toxicol Res & Pharmacokinet, FARAD, Raleigh, NC 27606 USA
[3] Univ Calif Davis, Sch Vet Med, Dept Med & Epidemiol, FARAD, Davis, CA 95616 USA
[4] Univ Florida, Coll Vet Med, Dept Physiol Sci, FARAD, Gainesville, FL 32610 USA