In the half-hour telephone call, Clinton made clear he was determined to move forward with talks aimed at generating U.S. support for China's entry into the World Trade Organization.

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Then an hour and a half after that call, another one came to say the operation was cancelled again.

BBC: Northern Ireland

As chief medical correspondent for the health and medical unit, he is a lead reporter on breaking medical news, provides regular health and medical updates for "American Morning, " anchors the half-hour weekend medical affairs program "House Call with Dr. Sanjay Gupta" and reports for CNN documentaries.

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