Name	Info	Provider	Link
Phenylketonuria	free resource	MedlinePlus Health Information	https://medlineplus.gov/phenylketonuria.html
	subscription/membership/fee required	Wiley	https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0141-8955&date=1981&volume=4&issue=2&spage=105