Dr. William Hardin Jr. has been chosen as associate chief medical officer of Children's Colorado at Memorial Hospital and Southern Colorado. In his new role, he is responsible for physician oversight and medical staff operations, graduate medical education and research activities. In partnership with Greg Raymond, regional vice president, Southern Colorado, he will lead the strategic direction for care delivery at Children's Colorado at Memorial, as well as for Southern Colorado. Most recently, he was vice chair for pediatric surgical service lines at Lehigh Valley Hospital and Health Network in Allentown, Pa. He has written or co-written seven book chapters and more than 50 publications in the areas of pediatric trauma, burns, minimally invasive surgery and ethics.