Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24167771/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/24167771
	free resource	University Health Partners of Hawaii	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3796786/pdf/hjmph7210_0362.pdf