1. Bruce Hall Department of GastroenterologySt Vincent's HospitalVictoria StreetDarlinghurstNSW2010
2. Douglass LaboratoriesSydney
3. Department of VirologyWestmead HospitalWestmeadNSW2145
4. National Centre in HIV Virology
5. National Centre in HIV Epidemiology and Clinical ResearchUniversity of New South WalesSt Vincents Hospital Medical Centre376 Victoria StreetDarlinghurstNSW2010