Trials, Volume 18, No. 1, Year 2017
Health Research Policy and Systems, Volume 15, No. 1, Year 2017
Health Research Policy and Systems, Volume 15, No. 1, Year 2017
Health Policy and Planning, Volume 33, No. 4, Year 2018
PLoS ONE, Volume 9, No. 12, Year 2014
PLoS ONE, Volume 3, No. 12, Year 2008
AIDS Care - Psychological and Socio-Medical Aspects of AIDS/HIV, Volume 18, No. 7, Year 2006