David Marcozzi, MD, Associate Professor and Director of Population Health, Department of Emergency Medicine, and Co-Director, Program in Health Disparities and Population Health, University of Maryland School of Medicine, is the lead author of “Trends in the Contribution of Emergency Departments to the Provision of Hospital-Associated Health Care in the USA,” published in this month's issue of International Journal of Health Services (48[2]:267-288). His co-authors from the Department of Emergency Medicine are Nicole Baehr, Emergency Medicine Healthcare Program Analyst, and Brian Browne, MD, Professor and Chairman. They collaborated with Brendan Carr, MD, MA, MS, Thomas Jefferson University School of Medicine, and Aisha Liferidge, MD, MPH, The George Washington University School of Medicine and Health Sciences (a 2006 graduate of the emergency medicine residency at the University of Maryland Medical Center).