[1] JEWISH GEN HOSP, LADY DAVIS INST MED RES, MONTREAL, PQ H3T 1E2, CANADA
[2] JEWISH GEN HOSP, MCGILL AIDS CTR, MONTREAL, PQ H3T 1E2, CANADA
[3] MACFARLANE BURNET CTR MED RES, AIDS PATHOGENESIS RES UNIT, FAIRFIELD, VIC 3078, AUSTRALIA
[4] MCGILL UNIV, DEPT MED, MONTREAL, PQ H3T 1E2, CANADA
[5] MCGILL UNIV, DEPT MICROBIOL & IMMUNOL, MONTREAL, PQ H3T 1E2, CANADA