Al Abri, M. Z., Farag, M. A., Al Mosawi, A. S., & Al Awaidy, S. T. (2020). Socio-Demographic Characteristics and Patterns of Substance Use Disorder in Oman : A retrospective study of the National Surveillance Programme between 2004 and 2018. Sultan Qaboos University Medical Journal, 20(4), e296–303. https://doi.org/10.18295/squmj.2020.20.04.004