Amino Acid Metabolism, Inborn Errors

• Bloemfontein Early Phase Clinical Unit, PAREXEL International (South Africa) — Bloemfontein, Free State, South Africa

• Bloemfontein Early Phase Clinical Unit, PAREXEL International (South Africa) — Bloemfontein, Free State, South Africa

• Institute for Maternal and Child Health IRCCS Burlo Garofolo — Trieste, Friuli Venezia Giulia, Italy

Not specified

• Children's Memorial Hospital — Chicago, Illinois, United States
• University of Minnesota Medical Center-Fairview — Minneapolis, Minnesota, United States
• Washington University Center for Applied Research Sciences — St Louis, Missouri, United States
• Mount Sinai Medical Center — New York, United States

• University Hospital of TOURS — Tours, I&L, France

• Keck School of Medicine, Clinical Trials Unit at Keck Medical Center of USC — Los Angeles, California, United States

• University of Michigan — Ann Arbor, Michigan, United States

Not specified

• Human Nutrition, School of Medicine, University of Glasgow — Glasgow, United Kingdom