Abstract Background Substance use disorders (SUD) often co-occur with attention deficit hyperactivity disorder (ADHD). Although the short-term effects of some specific interventions have been investigated in randomized clinical trials. little is known about the long-term clinical course of treatment-seeking SUD patients with comorbid ADHD. Aims This paper presents the protocol and bas... https://www.kingarte.com/product-category/industrialrestaurant-business-6/