Strengths and limitations
The use of a theoretical framework to understand the process of implementation within a research study enabled the systematic and comprehensive understanding of the processes underlying implementation, meaning results are more likely to be transferable to similar contexts. As Units participating in this study were from one geographically defined region (Southern UK), it is not known if or how the findings would differ in other settings, for example those with greater social or cultural diversity. One criticism of NPT is that it focuses primarily on the action of professionals, and does not take into account a range of perspectives, including the role that end users (e.g. patients) may play in implementation [