Table 2 Study selection process
Step | Action | Papers |
|---|---|---|
1 | Search in the databases with the search string | 2394 |
2 | Reading title and abstract, removing of duplicate studies obtained by different databases and applying the inclusion and exclusion criteria (EC1, EC3) | 101 |
3 | Reading full paper and applying the inclusion and exclusion criteria (EC1, EC2, EC3) | 23 |
4 | Removing duplicate templates based on the EC4 | 12 |