1. Abdala, N., Stephens, P. C., Griffith, B. P., & Heimer, R. (1999). Survival of HIV-1 in syringes. Journal of Acquired Immune Deficiency Syndrome, 20, 73–80.
2. Barrera, M. A. (1980). A method for assessing social support networks in community survey research. Connections, 3, 8–13.
3. Broadhead, R. S., Van Hulst, Y., & Heckathorn, D. D. (1999). The impact of a needle exchange’s closure. Public Health Reports, 114, 439–447.
4. Burris, S., Welsh, J., Ng, M., Li, M., & Ditzler, A. (2002). State syringe and drug possession laws potentially influencing safe syringe disposal by injection drug users. Journal of the American Pharmaceutical Association, 42(Suppl 2), S94–S98.
5. Caranci, P. F., Farmanian, R., Goldman, D., Kearns, C. M., LeBoeuf, K., Nicholson, R., Sands, R., & Scheraga, M. (2002). Eureka—implementing safe community needle disposal in Rhode Island. Journal of the American Pharmaceutical Association, 42(Suppl 2), S109–S110.