John, W. S., Zhu, H., Mannelli, P., Subramaniam, G. A., Schwartz, R. P., McNeely, J., & Wu, L. (2018). Prevalence and patterns of opioid misuse and opioid use disorder among primary care patients who use tobacco. Drug Alcohol Depend.

John, William S., He Zhu, Paolo Mannelli, Geetha A. Subramaniam, Robert P. Schwartz, Jennifer McNeely, e Li-Tzy Wu. "Prevalence and Patterns of Opioid Misuse and Opioid Use Disorder Among Primary Care Patients Who Use Tobacco." Drug Alcohol Depend 2018.

John, William S., et al. "Prevalence and Patterns of Opioid Misuse and Opioid Use Disorder Among Primary Care Patients Who Use Tobacco." Drug Alcohol Depend 2018.