Chubinski, Jennifer; Walsh, Sarah; Sallee, Toby; Rademacher, Eric (Autumn 2014). "Painkiller Misuse among Appalachians and in Appalachian Counties in Kentucky". Journal of Appalachian Studies. 20 (2): 154–169. doi:10.5406/jappastud.20.2.0154. JSTOR10.5406/jappastud.20.2.0154. At p. 155
Chubinski, Jennifer; Walsh, Sarah; Sallee, Toby; Rademacher, Eric (Autumn 2014). "Painkiller Misuse among Appalachians and in Appalachian Counties in Kentucky". Journal of Appalachian Studies. 20 (2): 154–169. doi:10.5406/jappastud.20.2.0154. JSTOR10.5406/jappastud.20.2.0154. At p. 155