Phenylketonuria

• Birmingham Women and Children's Hospital — Birmingham, United Kingdom

• Boston Children's Hospital — Boston, Massachusetts, United States
• Icahn School of Medicine at Mount Sinai — New York, United States

Not specified

• University of Florida College of Medicine — Gainesville, Florida, United States
• University of South Florida — Tampa, Florida, United States
• Rare Disease Research — Atlanta, Georgia, United States
• Ann & Robert H. Lurie Children's Hospital of Chicago — Chicago, Illinois, United States

• Children's Hospital of Fudan University — Shanghai, China

• Clinical investigation center, University Hospital, Tours — Tours, France
• Internal Medicine Service, University Hospital, Tours — Tours, France

• BC Children's Hospital Research Institute, University of British Columbia — Vancouver, British Columbia, Canada

• NHS Greater Glasgow and Clyde — Glasgow, Lanarkshire, United Kingdom
• Birmingham Women's and Children's NHS Foundation Trust — Burringham, West Midlands, United Kingdom
• Bradford Teaching Hospitals NHS Foundation Trust — Bradford, West Yorkshire, United Kingdom

• NHS Greater Glasgow and Clyde — Glasgow, Lanarkshire, United Kingdom
• Birmingham Children's Hospital NHS Foundation Trust — Birmingham, West Midlands, United Kingdom
• Bradford Teaching Hospitals NHS Foundation Trust — Bradford, West Yorkshire, United Kingdom

• Stanford University Center for Academic Medicine — Stanford, California, United States
• University of Colorado and the Children's Hospital CO — Aurora, Colorado, United States
• UF College of Medicine, Department of Pediatrics Division of Genetics and Metabolism — Gainesville, Florida, United States
• Indiana University School of Medicine — Indianapolis, Indiana, United States