Name	Info	Provider	Link
Twins, Triplets, Multiple Births	free resource	MedlinePlus Health Information	https://medlineplus.gov/twinstripletsmultiplebirths.html
	free resource	Public Library of Science	https://dx.plos.org/10.1371/journal.pone.0245152
	free resource	PubMed Central	https://www.ncbi.nlm.nih.gov/pmc/articles/pmid/33428660/
	free resource	Europe PubMed Central	https://europepmc.org/abstract/MED/33428660
	free resource	scite Smart Citations	https://scite.ai/reports/33428660