Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/0028-2243(91)90109-X
Vaginal Bleeding	free resource	MedlinePlus Health Information	https://medlineplus.gov/vaginalbleeding.html
Ectopic Pregnancy	free resource	MedlinePlus Consumer Health Information	https://medlineplus.gov/ectopicpregnancy.html