[1] Univ Calif Irvine, Dept Pathol, Irvine, CA 92717 USA
[2] VA Med Ctr, Pathol & Lab Med Serv, Long Beach, CA USA
[3] Univ Calif Irvine, Dept Pharmacol, Irvine, CA 92717 USA
[4] Amer Univ Beirut, Dept Physiol, Beirut, Lebanon
[5] Amer Univ Beirut, Dept Internal Med, Beirut, Lebanon
[6] Amer Univ Beirut, Dept Human Morphol, Beirut, Lebanon