Selected meetings attended Participation in expert meeting in conjunction with the sixth session of the African Union Conference of Ministers for Drug Control at Addis Ababa , Ethiopia ( 610 October 2014 ) ; Participation in the tenth meeting of the Inter-Ministerial Drug Coordinating Committee of the Economic Community of West African States ( ECOWAS ) members , held at Cotonou , Benin , organized by ECOWAS ( January 2014 ) ; Participation in the meeting of drug experts organized by the African Union and ECOWAS at Kampala , Uganda ( February 2013 ) ; Participation in the meeting of drug demand reduction experts , held at Mombasa , organized by the United Nations Office on Drugs and Crime ( 19-22 April 2006 ) . Faculty of Medicine , Vilnius University ( M.D . ) ( 1981 ) ; postgraduate studies in psychiatry , University of Tartu ( 1987-1990 ) ; Ph.D. in psychiatry , University of Tartu ( 1990 ) .