1. The authors are with the Center for Information Technology Leadership, Partners HealthCare System, in Boston, Massachusetts. Jan Walker ( ) is its executive director; Eric Pan, associate fellowship director and a senior analyst; Douglas Johnston, a senior analyst; Julia Adler-Milstein, a research analyst; David Bates, a member of the executive committee; and Blackford Middleton, chairman. Bates is also chief of the Department of General Internal Medicine at Brigham and Women's Hospital (Boston)...