Cooper, E. N., Dodson, C., Stopka, T. J., Riley, E. D., Garfein, R. S., & Bluthenthal, R. N. (2010). Pharmacy Participation in Non-Prescription Syringe Sales in Los Angeles and San Francisco Counties, 2007. Springer US.

Cooper, Erin N., Chaka Dodson, Thomas J. Stopka, Elise D. Riley, Richard S. Garfein, und Ricky N. Bluthenthal. Pharmacy Participation in Non-Prescription Syringe Sales in Los Angeles and San Francisco Counties, 2007. Springer US, 2010.

Cooper, Erin N., et al. Pharmacy Participation in Non-Prescription Syringe Sales in Los Angeles and San Francisco Counties, 2007. Springer US, 2010.