H. Abdul Razzak, N. Ghader, A. A. Qureshi, M. Zafar, J. F. Shaijan, and M. Al Kuwari, “Clinical Practice Guidelines for the Evaluation and Diagnosis of Attention-Deficit/Hyperactivity Disorder in Children and Adolescents: A systematic review of the literature”, Sultan Qaboos Univ Med J, vol. 21, no. 1, pp. e12–21, Mar. 2021.