Lessons learned from using respondent-driven sampling (RDS) to assess sexual risk behaviors among Kenyan young adults living in urban slum settlements: A process evaluation. oleh Larissa Jennings Mayo-Wilson, Muthoni Mathai, Grace Yi, Margaret O Mak'anyengo, Melissa Davoust, Massah L Massaquoi, Stefan Baral, Fred M Ssewamala, Nancy E Glass, NAHEDO Study Group