[1] Univ Alabama Birmingham, Dept Med, Div Infect Dis, Birmingham, AL 35294 USA
[2] Univ Michigan, Ann Arbor, MI 48109 USA
[3] Ann Arbor Vet Adm Hlth Care Syst, Ann Arbor, MI USA
[4] Wayne State Univ, Detroit, MI USA
[5] Univ Wisconsin, Madison, WI USA
[6] Duke Univ, Med Ctr, Durham, NC USA
[7] Harbor Univ Calif Los Angeles, Med Ctr, Torrance, CA USA
[8] Med Coll Georgia, Augusta, GA 30912 USA
[9] Univ Texas Houston, Houston, TX USA
[10] Univ Med & Dent New Jersey, Cooper Hosp, Camden, NJ 08103 USA
[11] NCI, Bethesda, MD 20892 USA
[12] CHU Vaudois, CH-1011 Lausanne, Switzerland
[13] Univ Nijmegen, Ctr Infect Dis, Nijmegen, Netherlands
[14] Astra Zeneca Pharmaceut, Manchester, Lancs, England