Prevalence and associated risk factors of cannabinoid abuse among Egyptian university students: a cross-sectional study - Yahya M. Naguib; Huda A. Sherif; Amr T. Elbalshy; Eslam A. Edrees; Ahmed E. Sabry; Asmaa F. Sharif; Samar H. A. Aloshari; Zeinab A. Kasemy (Environmental Science and Pollution Research, 2021)