MICHAEL M. E. JOHNS is currently professor of medicine and public health at Emory University, where he served as chancellor from 2007 until 2012. His career at Emory began in 1996 when he was appointed executive vice president for health affairs, CEO of the Robert W. Woodruff Health Sciences Center, and chairman of the Board of Emory Healthcare. He previously served as dean of the Johns Hopkins School of Medicine and vice president for medicine at Johns Hopkins University from 1990 to 1996. Dr. Johns received his bachelor's degree from Wayne State University and his medical degree with distinction at the University of Michigan Medical School. From 1977 to 1984 he was a faculty member at the University of Virginia Medical Center in Charlottesville. The recipient of numerous honors and awards, he is the co-author of The Good Doctor: Why Medical Uncertainty Matters, a member of the National Academy of Medicine (formerly the Institute of Medicine) and has served in leadership positions in many organizations.