Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/27021597/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/27021597
	subscription/membership/fee required	Wiley	https://doi.org/10.1002/14651858.CD007371.pub3
Full text from	free resource	Edinburgh Research Explorer, University of Edinburgh	http://hdl.handle.net/20.500.11820/0089e7fb-a2f8-4e37-9b49-64a9c2f41c5e
	free resource	scite Smart Citations	https://scite.ai/reports/27021597