Name	Info	Provider	Link
	free resource	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S0015-0282(07)03946-5
Menstruation	free resource	MedlinePlus Health Information	https://medlineplus.gov/menstruation.html
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy/pii?v=S0015-0282(07)03946-5