CONCLUSION
Considerable evidence for CS in nursing exists in the literature and there is sufficient empirical argument for CS to be implemented in nursing. Evidence exists around the three core domains of Proctors model of CS, providing peer support and stress relief for nurses (restorative function), as well as a means of promoting professional accountability (normative function), and skill and knowledge development (formative function). The nursing literature dominates with speciality groups such as mental health nurses and aged care nurses. More research is needed to evaluate the effectiveness of CS in other specialties of nursing. Further study needs to explore the differences between similar forms of supervision, such as action learning sets and mentorship groups.