PLoS ONE, Volume 9, No. 11, Year 2014
PLoS ONE, Volume 7, No. 11, Year 2012
PLoS ONE, Volume 8, No. 7, Year 2013
AIDS Patient Care and STDs, Volume 28, No. 12, Year 2014
PLoS ONE, Volume 9, No. 10, Year 2014
Tropical Medicine and International Health, Volume 15, No. 4, Year 2010
Reproductive Health, Volume 12, No. 1, Year 2015