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A controversial study of retail security systems' impact on people with pacemakers, condemned twice in previous years, has come back to life as the study's author pressed his case recently in Europe.
According to the St. Petersburg, Fla., heart specialist, people with pacemakers should proceed at a quick pace through antishoplifting devices. Dr. Michael McIvor, medical director of the Research Center at the Heart Institute of St. Petersburg, Fla., claims that prolonged exposure to signals emitted from some theft detectors, caused by standing in the reader portals, could cause dizziness or fainting in pacemaker wearers.
In addressing the Center for Retail Research, McIvor claimed, "if you walk through the device and you don't stop, you're probably not going to be hurt. But if you stand in the device, there is a...