Citation: Weinberger AH, Platt J, Copeland J, Goodwin RD. Is Cannabis Use Associated With Increased Risk of Cigarette Smoking Initiation, Persistence, and Relapse? Longitudinal Data From a Representative Sample of US Adults. J Clin Psychiatry. 2018 Mar 6;79(2). pii: 17m11522. doi: 10.4088/JCP.17m11522. [Epub ahead of print]