The digitization of our health-care system is well under way, but several obstacles frustrate efforts to take full advantage of the health information revolution.  Perhaps the most important is our difficulty moving patients’ data, so that records can follow patients as they go from one site of care to another.

Moving health data goes by the technical term “health information exchange” or HIE. There are some technical barriers to HIE, but they are not the big problems. The big problems are economic and cultural.

Read more on The Wall Street Journal.