A review last year by NHS medical director, Professor Sir Bruce Keogh, concluded the PIP breast implants were not toxic or carcinogenic.
Today's European study said the implants have not been associated with higher risks of cancer.
It added: "Laboratory tests on PIP implants have been negative for cytotoxicity and genotoxicity."
The study said PIP implants have been subjected to chemical analysis "in an effort to find organic and inorganic compounds (including heavy metals) that may be potentially toxic, but none have been found even at very low levels".
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