- Correspondence to Professor Tim F Greten, Gastrointestinal Malignancy Section, Medical Oncology Branch, National Cancer Institute, Building 10, Room 12N226, 9000 Rockville Pike, Bethesda, MD 20892, USA;
- Received April 24, 2013
- Revised May 1, 2013
- Accepted May 2, 2013
- First published May 25, 2013.
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