1. Effects of Community-Based Health Worker Interventions to Improve Chronic Disease Management and Care Among Vulnerable Populations: A Systematic Review
2. European Commission (2015). Recruitment and retention of the health workforce in Europe. Final Report. (https://ec.europa.eu/health/sites/health/files/workforce/docs/2015_healthworkforce_recruitment_retention_frep_en.pdf, accessed 20 May 2019).
3. Council of the European Union (2006). Council conclusions on common values and principles in European Union health systems. Official Journal of the European Union (2006/c 146/01) .
4. Strengthening the performance of community health workers in primary health care;Report of a WHO Study Group. Tech Rep Ser,1989