On Wednesday, 29 Jumada Al-Thani 1440 A.H., Her Excellency Dr. Sumaya Ezzat Sharaf, Assistant Professor of Psychiatric Health, Department of Psychology, participated in the 19th Scientific Meeting for Hajj and Umrah Research with a scientific paper entitled "Charter of Voluntary Work in Hajj and Umrah Systems" during the course of a workshop entitled "Research Needs of the Working Groups in Hajj and Umrah, and Visitors to the Madinah Region."