Davis, S. M., Davidov, D., Kristjansson, A. L., Zullig, K., Baus, A., & Fisher, M. (2018). Qualitative case study of needle exchange programs in the Central Appalachian region of the United States. PLoS One.

Davis, Stephen M., Danielle Davidov, Alfgeir L. Kristjansson, Keith Zullig, Adam Baus, و Melanie Fisher. "Qualitative Case Study of Needle Exchange Programs in the Central Appalachian Region of the United States." PLoS One 2018.

Davis, Stephen M., et al. "Qualitative Case Study of Needle Exchange Programs in the Central Appalachian Region of the United States." PLoS One 2018.