Name	Info	Provider	Link
	free resource	J-STAGE, Japan Science and Technology Information Aggregator, Electronic	http://joi.jlc.jst.go.jp/JST.JSTAGE/jcbn/41.27?lang=en&from=PubMed
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/18392104/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/18392104