Name	Info	Provider	Link
	free resource	The Korean Radiological Society	https://www.kjronline.org/DOIx.php?id=10.3348/kjr.2020.0296
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/33543843/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/33543843