PREVENTING DRUG ABUSE : INTERFACING MEDICAL, LEGAL AND CULTURAL RESPONSES WITH A HUMAN RIGHTS VISION. SIR PHILLIP SHERLOCK DISTINGUISHED LECTURE BY DR. EDWARD GREENE, CARICOM/PAHO ADVISOR, AND FORMER ASSISTANT SECRETARY-GENERAL, CARIBBEAN COMMUNITY SECRETARIAT, TO THE SEVENTEENTH ANNUAL CONFERENCE OF THE UNIVERSITY DIABETIC OUTREACH PROGRAMME, 25 MARCH 2011, OCHO RIOS, JAMAICA