Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/29854712/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/29854712
	free resource	The Korean Surgical Society	https://www.astr.or.kr/DOIx.php?id=10.4174/astr.2018.94.6.337
	free resource	scite Smart Citations	https://scite.ai/reports/29854712