Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22162598/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/22162598
	free resource	University Health Partners of Hawaii	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3215983/pdf/hmj7010_0220.pdf