Christopher S. Kovacs, MD, is a Professor of Medicine (Endocrinology and Metabolism), Obstetrics & Gynecology, and BioMedical Sciences at Memorial University of Newfoundland, Canada. He obtained his MD and trained in Internal Medicine at Queen’s University, and did his clinical fellowship in Endocrinology and Metabolism at the University of Alberta. Dr. Kovacs did a postdoctoral research fellowship in bone and mineral metabolism at Harvard Medical School and Massachusetts General Hospital. His clinical practice focuses on osteoporosis, disorders of bone metabolism, thyroid disorders, and general endocrinology. His basic, translational, and clinical research focuses on adaptations in calcium and bone metabolism that occur during reproduction and fetal development. Dr. Kovacs has received over a dozen national and international awards for excellence in research, including the 2003 Gold Medal in Medicine from the Royal College of Physicians and Surgeons of Canada; the 2003 Young Investigator Award from the Canadian Society of Endocrinology and Metabolism, and Young Investigator Awards from the American Society for Bone and Mineral Research and Advances in Mineral Metabolism (AIMM). He is also past President of AIMM. Cheri L. Deal, PhD, MD, is a Professor of Endocrinology in the Department of Pediatrics, University of Montreal, and the Chief of the Endocrinology Service at the Ste-Justine Mother-Child University Teaching Hospital in Montreal, Canada. Her training took her to McGill University, University of Montreal, and finally Stanford University for her endocrine research fellowship in placental growth. Past President of both the Canadian Pediatric Endocrine Group and the Canadian Society of Endocrinology and Metabolism, she now chairs the Education Committee of the International Society of Endocrinology. Her awards include the Young Investigator Award from the Pediatric Endocrine Society (previously LWPES), and most recently the Harvey Guyda Educator of the Year Award and the Robert Volpé Service Award from the Canadian Society of Endocrinology and Metabolism. Her major research interest is in the contribution of the growth hormone-insulin-like growth factor (GH-IGF) axis to the regulation of human growth. She has a strong commitment to patient-driven research, and has helped to elucidate the molecular defects associated with a wide range of rare pediatric endocrine disorders as well as participated in clinical studies aimed at ameliorating outcomes in a variety of pediatric endocrine diseases.