The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
Children's Hospital of Philadelphia, Section of Metabolism,PKU program, Philadelphia, Pennsylvania, United States
Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
The Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States
Chidren's Hospital of Philadelphia, Philadelphia, Pennsylvania, United States