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This looks like an improvement or a specialized version of the pill size video camera/transmitter which became available a few years ago to gastroenterologists for multiple "live" pictures of the GI track to enable them to detect even asymptomatic lesions, polyps,ulcers,tumors...
This is how it was possible to confirm that contrary to claims by the supplier of celebrex (not to speak of Vioxx now withdrawn) this drug does cause GI damage in 10 to 20% of users even if they are not aware of it.
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