Investigation of prevalence of substance use disorders using direct and indirect methods and factors affecting initiation of substance use. - Tatari, Faezeh; Farnia, Vahid; Moradinazar, Mehdi; Alikhani, Mostafa; Olfati, Lida; Nazari Harmooshi, Narges; Radmehr, Farnaz; Salemi, Safora; Hookari, Sara; Davarinejad, Omran; Rahami, Bahareh (Journal of Substance Use, 2025)