BMC health services research, Volume 21, No. 1, Year 2021
Human Resources for Health, Volume 19, No. 1, Year 2021
Frontiers in Public Health, Volume 9, Year 2021
International Journal of Environmental Research and Public Health, Volume 17, No. 21, Year 2020
Frontiers in Public Health, Volume 9, Year 2021
BMC Pregnancy and Childbirth, Volume 20, No. 1, Year 2020
PLoS ONE, Volume 15, No. 1, Year 2020