Stevenson B, Forrest JI, Pai J, Michelow W, Roth EA, Moore D, & Hogg RS. The nature of MSM connectivity in Vancouver, BC and the importance of formative phase research for highlighting potential ‘bottlenecks’ within sub-networks when selecting optimal seeds for Respondent Driven Sampling (RDS). 21st Annual Canadian Conference on HIV/AIDS Research (CAHR). April 2011. Montreal, Quebec.