PLoS ONE, Volume 7, No. 10, Year 2012
PLoS ONE, Volume 12, No. 8, Year 2017
Journal of the International AIDS Society, Volume 21, No. S4, Year 2018
PLoS ONE, Volume 9, No. 2, Year 2014
Health Policy and Planning, Volume 32, No. 5, Year 2017
Health Policy and Planning, Volume 34, No. 1, Year 2019
PLoS ONE, Volume 9, No. 9, Year 2014
BMJ Open, Volume 8, No. 10, Year 2018