Name	Info	Provider	Link
	subscription/membership/fee required	Elsevier Science	https://linkinghub.elsevier.com/retrieve/pii/S1084-9521(18)30307-0
Assisted Reproductive Technology	free resource	MedlinePlus Health Information	https://medlineplus.gov/assistedreproductivetechnology.html
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/32081627/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/32081627