- Dr Hiroyuki Uehara, Department of Gastrointestinal Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, 1-3-3 Nakamichi, Higashinari, Osaka 537-8511, Japan;
- Revised April 26, 2008
- Accepted May 5, 2008
- First published May 13, 2008.
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