The Wall Street Journal, November 18, 2013

Cardiologist Eric Topol says he knew medicine had reached a turning point when patients started emailing him the results of do-it-yourself electrocardiograms. With the help of a smartphone, a software application and a portable device that reads a person's heart rhythm, anyone can get an instant EKG reading on their phone screen. "I am getting emails from people saying, 'I'm in atrial fibrillation—what do I do?' " Dr. Topol says, referring to a type of irregular heartbeat. "Whoa! The first time I saw that in the subject line of an email, I said, the world has really changed."

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