Steen, R., Wheeler, T., Gorgens, M., Mziray, E., & Dallabetta, G. (2015). Feasible, Efficient and Necessary, without Exception: Working with Sex Workers Interrupts HIV/STI Transmission and Brings Treatment to Many in Need. Public Library of Science.

Steen, Richard, Tisha Wheeler, Marelize Gorgens, Elizabeth Mziray, and Gina Dallabetta. Feasible, Efficient and Necessary, Without Exception: Working With Sex Workers Interrupts HIV/STI Transmission and Brings Treatment to Many in Need. Public Library of Science, 2015.

Steen, Richard, et al. Feasible, Efficient and Necessary, Without Exception: Working With Sex Workers Interrupts HIV/STI Transmission and Brings Treatment to Many in Need. Public Library of Science, 2015.