Name	Info	Provider	Link
Arrhythmia	free resource	MedlinePlus Health Information	https://medlineplus.gov/arrhythmia.html
	subscription/membership/fee required	Ovid Technologies, Inc.	http://ovidsp.ovid.com/ovidweb.cgi?T=JS&PAGE=linkout&SEARCH=22561618.ui
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22561618/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/22561618
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-PGR-2
	free resource	Wolters Kluwer	https://journals.lww.com/22561618.pmid