Design paper: The CapOpus trial: a randomized, parallel-group, observer-blinded clinical trial of specialized addiction treatment versus treatment as usual for young patients with cannabis abuse and psychosis

设计论文：CapOpus试验：一项针对年轻大麻滥用和精神病患者的专业成瘾治疗与常规治疗的随机、平行组、观察者盲法临床试验