Dr. Meltzer is the Fanny L. Pritzker Professor of Medicine, Chief of the Section of Hospital Medicine, and Director of the Center for Health and the Social Sciences at the University of Chicago. His research aims to improve the quality and lower the cost of hospital care. We spoke with him about the Comprehensive Care Physician Model, which he pioneered and was recently featured in an article in The New York Times Magazine.

Eric A. Coleman, MD, MPH, is Associate Professor of Medicine at the University of Colorado. Trained in both geriatrics and health services research, Dr. Coleman has emerged as one of the world's leading authorities on issues surrounding transitions of care, particularly between acute and postacute settings. His care model, the Care Transitions Intervention, is being adopted by leading health care organizations around the country. The Intervention has been associated with significant decreases in rehospitalization rates.

Michael Cohen, RPh, MS, ScD, is president of the Institute for Safe Medication Practices (ISMP) and co-editor of ISMP Medication Safety Alert!, a biweekly newsletter. A pharmacist by training, his ground-breaking work and commitment to patient safety and preventing medication errors has spanned three decades. He received one of the prestigious MacArthur Fellowships (informally known as the "genius awards") in 2005.