Mohammed, Alqahtani Jawhrah. “Prevalence and Vulnerability to Drug Abuse Among Students of High School and Colleges in Riyadh, Saudi Arabia: Cross-Sectional Study by Khadeejeh, Alaa, Nahla, Nourah, Alaa, Beshaier, and Hind (2019)”. International Journal of Innovative Research in Medical Science, vol. 4, no. 07, July 2019, p. 427 to 428, doi:10.23958/ijirms/vol04-i07/690.