Smart phones have fundamentally changed the world -- at times, it's difficult to imagine life without one of these handy computers. There's a world of people you can call, a universe of information at your fingertips and millions of specialized programs to make everyday life that much easier. In fact, it sounds too good to be true... and, according to some critics, that might just be the case. So how do we separate the fact from fiction when it comes to smart phones and cancer?

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