<p>China's drug control agency disputed on Friday U.S. President Donald Trump's claim that most of
the synthetic drug fentanyl at the heart of the U.S. opioid crisis was produced in China.</p>| <p>China's drug control agency disputed on Friday U.S. President Donald Trump's claim that most of
the synthetic drug fentanyl at the heart of the U.S. opioid crisis was produced in China.</p> |