Name	Info	Provider	Link
	free resource	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0085-2538(15)55173-9
Kidney Tests	free resource	MedlinePlus Health Information	https://medlineplus.gov/kidneytests.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/21881552/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/21881552
Cited by Patents in	free resource	The Lens - Patent Citations	https://www.lens.org/lens/search/patent/list?q=citation_id:21881552