Name	Info	Provider	Link
Pacemakers and Implantable Defibrillators	free resource	MedlinePlus Health Information	https://medlineplus.gov/pacemakersandimplantabledefibrillators.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/34665870/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/34665870
	free resource	Silverchair Information Systems	https://meridian.allenpress.com/thij/article-lookup/doi/10.14503/THIJ-19-7093