Name	Info	Provider	Link
	free resource	BioMed Central	https://bmcmedresmethodol.biomedcentral.com/articles/10.1186/s12874-023-02130-0
Free full text from BORIS	free resource	Bern Open Repository and Information System	https://boris.unibe.ch/id/eprint/199508
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/39103781/