Appendix 2.

PRISMA-S Checklist.

Section/topic	#	Checklist item	Location(s) Reported
INFORMATION SOURCES AND METHODS
Database name	1	Name each individual database searched, stating the platform for each	p 4, Appendix 1
Multi-database searching	2	If databases were searched simultaneously on a single platform, state the name of the platform, listing all of the databases searched	Appendix 1
Study registries	3	List any study registries searched	n/a
Online resources and browsing	4	Describe any online or print source purposefully searched or browsed (e.g. tables of contents, print conference proceedings, web sites), and how this was done	n/a
Citation searching	5	Indicate whether cited references or citing references were examined, and describe any methods used for locating cited/citing references (e.g. browsing reference lists, using a citation index, setting up email alerts for references citing included studies)	5
Contacts	6	Indicate whether additional studies or data were sought by contacting authors, experts, manufacturers, or others	5
Other methods	7	Describe any additional information sources or search methods used	n/a
SEARCH STRATEGIES
Full search strategies	8	Include the search strategies for each database and information source, copied and pasted exactly as run	Appendix 1
Limits and restrictions	9	Specify that no limits were used, or describe any limits or restrictions applied to a search (e.g. date or time period, language, study design) and provide justification for their use	p 4, Appendix 1
Search filters	10	Indicate whether published search filters were used (as originally designed or modified), and if so, cite the filter(s) used	n/a
Prior work	11	Indicate when search strategies from other literature reviews were adapted or reused for a substantive part or all of the search, citing the previous review(s)	n/a
Updates	12	Report the methods used to update the search(es) (e.g. rerunning searches, email alerts)	n/a
Dates of searches	13	For each search strategy, provide the date when the last search occurred	p 4, Appendix 1
PEER REVIEW
Peer review	14	Describe any search peer review process	n/a
MANAGING RECORDS
Total Records	15	Document the total number of records identified from each database and other information sources	Appendix 1, Fig 1
Deduplication	16	Describe the processes and any software used to deduplicate records from multiple database searches and other information sources	Appendix 1