Name	Info	Provider	Link
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22942506/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/22942506
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-VSIR-1
	subscription/membership/fee required	Silverchair Information Systems	https://academic.oup.com/sleep/article-lookup/doi/10.5665/sleep.2086