A pediatric health researcher at Washington, D.C.'s Children's National Health System is employing geographic information systems to gain insights into childhood obesity and diabetes with maps that show obesity rates along with the locations of fast-food restaurants, for example. "For the first time, we are able to characterize the percentage of the population in different disease groups, where they reside, and the impact of gender and race," Dr. Brian Jacobs said. "As you manage population health and try to keep people out of the emergency room, geospatial technologies will come into play."

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