3.1 Study Selection
Our initial search of the literature yielded a total of 454 results.
Removal of duplicate articles, title and abstract screening excluded 435
articles. The full texts of the remaining 19 articles were screened and
9 articles were selected for inclusion in this review. A further three
articles were sourced from bibliography searches. In total, 12 articles
were selected for inclusion in this review; the search strategy is
summarised in figure 1.