Cronin, P., Ryan, F., & Coughlan, M. (2010). Concept analysis in healthcare research. International Journal of Therapy and Rehabilitation, 17 (2), 62-68.
Duncan, C., Cloutier, J. D., & Bailey, P. H.(2007). Concept analysis: the importance of differentiating the ontological focus. Journal of Advanced Nursing, 58 (3), 293-300.