Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/30534539/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/30534539
	free resource	Korean Hip Society	https://hipandpelvis.or.kr/DOIx.php?id=10.5371/hp.2018.30.4.210