1. Unit of Infectious Diseases Sheba Medical Center Ramat Gan Israel
2. Sackler Medical School Tel Aviv University Tel Aviv Israel
3. The Department of Statistics The Gertner Institute for Epidemiology and Health Policy Research Tel HaShomer Israel
4. The Israeli AIDS Task Force Tel Aviv Israel
5. Israel's LGBT Task Force Tel Aviv Israel
6. Magen David Adom National Blood Services Ramat Gan Israel