Name	Info	Provider	Link
	subscription/membership/fee required	S. Karger AG, Basel, Switzerland	https://doi.org/10.1159/000356433
Twins, Triplets, Multiple Births	free resource	MedlinePlus Health Information	https://medlineplus.gov/twinstripletsmultiplebirths.html
	free resource	scite Smart Citations	https://scite.ai/reports/24457466