Name	Info	Provider	Link
	subscription/membership/fee required	Chinese Medical Association Publishing House Ltd.	https://www.yiigle.com/LinkIn.do?linkin_type=pubmed&issn=0253-2727&year=2018&vol=39&issue=4&fpage=304
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29779326/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/29779326