- Correspondence to Dr Akira Kuriyama, Department of General Medicine, Kurashiki Central Hospital, 1-1-1 Miwa Kurashiki, Okayama 710-8602, Japan;
- Received November 28, 2012
- Revised November 28, 2012
- Accepted November 30, 2012
- First published January 10, 2013.
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