Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0196-0709(20)30442-7
Fistulas	free resource	MedlinePlus Health Information	https://medlineplus.gov/fistulas.html
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy/pii?v=S0196-0709(20)30442-7
	free resource	scite Smart Citations	https://scite.ai/reports/33068955