1. Department of Infectious Diseases; Alfred Hospital and Monash University; Melbourne Victoria Australia
2. Burnet Institute; Melbourne Victoria Australia
3. School of Statistics; University of Minnesota; Minneapolis MN USA
4. University of New South Wales; Sydney New South Wales Australia
5. Peter Duncan Neurosciences Unit St Vincent's Centre for Applied Medical Research, St Vincent's Hospital; Sydney New South Wales Australia
6. AIDS Neurological Center, Neurology; University of North Carolina; Chapel Hill NC USA
7. Division of Biostatistics; University of Minnesota; Minneapolis MN USA
8. Department of Family Medicine; University of Colorado School of Medicine; Denver CO USA
9. Denver Public Health; Denver Health and Hospital Authority; Denver CO USA
10. Division of Medicine; Imperial College London; London UK
11. Victorian Infectious Diseases Service; Royal Melbourne Hospital; Melbourne Victoria Australia
12. Melbourne Sexual Health Centre; Alfred Health; Melbourne Victoria Australia
13. Department of Neurology; University of San Francisco California; San Francisco CA USA