Sadeghi Bimorgh,M , , Akbarzadeh,F , , Ayati Afin,A , , Talaei,A , , Jafarian,T , , Mir Teimouri,M , and Ebrahimi,A . "Prevalence of nonmedical use of Ritalin among medical students of Mashhad University of Medical Sciences", Fundamentals of Mental Health, 25, 1, 2023, 29-34. doi: 10.22038/jfmh.2023.21808