Name	Info	Provider	Link
	free resource	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S2542-5196(18)30210-9
Fetal Health and Development	free resource	MedlinePlus Health Information	https://medlineplus.gov/fetalhealthanddevelopment.html
	free resource	NCI CPTC Antibody Characterization Program	https://antibodies.cancer.gov/detail/CPTC-HLA-B-1
	subscription/membership/fee required	ClinicalKey	https://www.clinicalkey.com/content/playBy/pii?v=S2542-5196(18)30210-9