*3.3. Criteria for Selection of Papers*

Selection criteria for identifying publications for systematic review were as follows:


Books, book chapters, theses, editorials, feature or opinion pieces, essays, governmental and industry guidelines, other non-peer-reviewed or non-research publications, non-English publications, and publications appearing in local conferences, workshops or journals were excluded from the search. Review papers were not included in the analysis, but their content was analysed in the manual reference search and, where relevant, they are mentioned.
