1. WHO. (2016). Global strategy on human resources for health: workforce 2030.https://www.who.int/hrh/resources/pub_globstrathrh‐2030/en/(accessed January 17 2018).
2. WHO/Europe. (2018). Data and statistics: Shortage of nurses and midwives.http://www.euro.who.int/en/health‐topics/Health‐systems/nursing‐and‐midwifery/data‐and‐statistics(accessed July 3 2018)
3. The King's Fund. (2018). The NHS in a nutshell—NHS staffing numbers.https://www.kingsfund.org.uk/projects/nhs‐in‐a‐nutshell/nhs‐staffing‐numbers(accessed December 10 2018)
4. The Health Foundation. (2019). A critical moment: NHS staffing trends retention and attrition.https://www.health.org.uk/publications/reports/a‐critical‐moment(accessed April 3 2019)
5. The Open University. (2018). The £1.5 billion nursing shortage bill.https://www3.open.ac.uk/media/fullstory.aspx?id=32449(accessed December 10 2018)