@article{Johnston2016,
author = {Johnston, L.G. and Hakim, A.J. and Dittrich, S. and Burnett, J. and Kim, E. and White, R.G.},
title= {A systematic review of published respondent-driven sampling surveys collecting behavioral and biologic data},
year = {2016},
doi = {10.1007/s10461-016-1346-5},
volume = {20},
number = {8},
pages = {1754--1776},
}