[1] Int AIDS Soc USA, San Francisco, CA 94129 USA
[2] Columbia Univ Coll Phys & Surg, New York, NY 10032 USA
[3] Brown Univ, Sch Med, Providence, RI 02912 USA
[4] Univ New S Wales, Sydney, NSW, Australia
[5] Univ Miami, Sch Med, Miami, FL USA
[6] Univ Barcelona, Hosp Clin, Barcelona, Spain
[7] Chelsea & Westminster Hosp, London, England
[8] Harvard Univ, Sch Med, Boston, MA USA
[9] Hop Bichat Claude Bernard, Dept Infect Dis, X Bichat Med Sch, F-75877 Paris 18, France
[10] Stanford Univ, Med Ctr, Stanford, CA 94305 USA
[11] Univ British Columbia, Vancouver, BC V5Z 1M9, Canada
[12] Univ Calif San Diego, La Jolla, CA 92093 USA
[13] San Diego VA Healthcare Syst, San Diego, CA USA
[14] Univ Alabama Birmingham, Birmingham, AL USA
[15] Univ Fed Rio de Janeiro, BR-21941 Rio De Janeiro, Brazil
[16] Univ Colorado, Sch Med, Denver, CO USA
[17] AIDS Res Consortium Atlanta, Atlanta, GA USA
[18] Ist Super Sanita, I-00161 Rome, Italy
[19] Univ Calif San Francisco, San Francisco, CA 94143 USA
[20] San Francisco VA Med Ctr, San Francisco, CA USA