Charles R. Scriver, MDCM, FRS - Montreal Children's Hospital, Montreal, Quebec, Canada. Arthur L. Beaudet, MD - Dept. of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA. William S. Sly, MD - Dept. of Biochemistry, St. Louis University School of Medicine, St. Louis, MO, USA. David Valle, MD - Howard Hughes Medical Institute, The Johns Hopkins University, Baltimore, MD, USA. Bert Vogelstein, MD - The Johns Hopkins University Oncology Center, School of Medicine, Baltimore, MD, USA. Barton Childs, MD - The Johns Hopkins University, School of Medicine, Baltimore, MD, USA.