Han, B., Gfroerer, J. C., Colliver, J. D. and Penne, M. A. (2009), Substance use disorder among older adults in the United States in 2020. Addiction, 104: 88–96. doi: 10.1111/j.1360-0443.2008.02411.x
Han, B., Gfroerer, J. C., Colliver, J. D. and Penne, M. A. (2009), Substance use disorder among older adults in the United States in 2020. Addiction, 104: 88–96. doi: 10.1111/j.1360-0443.2008.02411.x