[1] Hlth Res Union Clin NEOLAB, 8 Nutsubidze Str, GE-0177 Tbilisi, Georgia
[2] Univ Georgia, 77a MKostava Str, GE-0171 Tbilisi, Georgia
[3] TEPHINET, 9 Asatiani St, GE-0177 Tbilisi, Georgia
[4] Georgian Harm Reduct Network, 24 Shartava Str 3rd Floor,Apt 6, Tbilisi, Georgia
[5] Natl Ctr Dis Control & Publ Hlth, 99 Kakheti Highway, GE-0198 Tbilisi, Georgia
[6] Medecins Monde, 24 Paliashvili Str, GE-0179 Tbilisi, Georgia
[7] CDC, Div Viral Hepatitis, Natl Ctr HIV AIDS Viral Hepatitis STD & TB Preven, 1600 Clifton Rd, Atlanta, GA 30329 USA