PKU (Phenylketonuria) (UXL Science, 2008) : Encyclopedia entry briefly discussing the disorder, including a short history and statistics of PKU.
Phenylketonuria : An overview of the disorder, including statistics and treatment information.
“PKU FAQs: Frequently Asked Questions.” YouTube, PKU, 19 Dec. 2017, www.youtube.com/watch?v=BDXHn7fFVeo.
National Institutes of Health [Public domain], via Wikimedia Commons
Kashmiri, based on earlier work by Domaina [CC BY-SA 3.0 (https://creativecommons.org/licenses/by-sa/3.0)], from Wikimedia Commons