[1] Yerkes Reg Primate Res Ctr, Atlanta, GA 30329 USA
[2] Duke Univ, Med Ctr, Durham, NC 27710 USA
[3] New England Reg Primate Res Ctr, Southborough, MA 01772 USA
[4] Harvard Univ, Sch Med, AIDS Res Ctr, Southborough, MA 01772 USA
[5] GTC Mason Labs, Worcester, MA 01608 USA
[6] Ctr Dis Control, Atlanta, GA 30333 USA
[7] NCI, Frederick Canc Res Ctr, Frederick, MD 21702 USA
[8] Univ Texas, MD Anderson Canc Ctr, Bastrop, TX 78802 USA
[9] Univ Massachusetts, Med Ctr, Div Infect Dis, Worcester, MA 01655 USA
[10] Univ Washington, Reg Primate Res Ctr, Seattle, WA 98195 USA
[11] Therion Biol, Cambridge, MA 02142 USA