**2.4 Literature search findings**

The findings of the literature search were as follows:

The literature has a total of 47 studies of which were qualitative, quantitative, mixed research methods, systematic review, meta-analysis review and narrative review. Other 11 kinds of literature were from websites, 3 were magister curations dissertations and 1 book was also reviewed. In addition, this literature review only included literature of relevance.
