Name	Info	Provider	Link
Osteonecrosis	free resource	MedlinePlus Health Information	https://medlineplus.gov/osteonecrosis.html
	free resource	Public Library of Science	https://dx.plos.org/10.1371/journal.pone.0212931
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/30794689/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/30794689