Name	Info	Provider	Link
	free resource	Cancer Center,Sun Yat-sen University	http://www.cancercommun.com/fulltextnew.asp?doi=10.5732/cjc.011.10418
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22854061/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/22854061