Prince Mohammad bin Nasser bin Abdul-Aziz, Governor of Jazan region, patronized here today the opening ceremony of an international conference organized by the Centre for Research on Psychotropic Substances of Jazan University in cooperation with the National Commission for Drug Control and Supervision and the Saudi Psychiatric Association. The event was held in the presence of the rector of the university Dr. Mohammed bin Ali Al Hiazaa. Following the ceremony, Prince Mohammed bin Nasser bin Abdulaziz expressed delight over opening of the conference which includes a selection of Saudi and international researchers.