[1] David Tvildiani Med Univ, Tbilisi, Georgia
[2] Boston Univ, Chobanian & Avedisian Sch Med, Boston, MA 02215 USA
[3] Boston Med Ctr, Sect Gen Internal Med, Dept Med, 801 Massachusetts Ave,Crosstown Ctr 2nd Floor, Boston, MA 02118 USA
[4] Boston Univ, Sch Publ Hlth, Boston, MA USA
[5] Addict Res Ctr Alternat Georgia, Tbilisi, Georgia
[6] Ilia State Univ, Sch Nat Sci & Med, Tbilisi, Georgia
[7] Ilia State Univ, Sch Arts & Sci, Tbilisi, Georgia