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Exact(9)
Any relevant papers published in the same period that were not selected by these keywords were also taken into account.
However, in order to complement the results obtained, we applied snowballing procedures to add any relevant papers that had not been identified during the exploration of the search string, but which were referenced by or referred to in any of the papers initially identified.
The references of all included and excluded studies were further screened to identify any relevant papers.
We did not search CINAHL [ 32] as this database was unlikely to provide any relevant papers.
The literature search did not locate any relevant papers describing studies conducted outside the OECD.
No limits were placed on the publication date, meaning that any relevant papers, regardless of publication date, would be found.
Similar(50)
We also reviewed the references lists of all relevant papers for any additional studies.
References in all relevant papers were reviewed for additional publications.
We also examined the bibliographies of all relevant papers.
These searches did not yield any new relevant papers.
Reference lists for all eligible papers were scrutinised for any additional relevant papers.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com