- Correspondence to Dr Eita Goto, Department of Medicine and Public Health, Mizawa Hospital, 3-3-1, Sato, Naka-ku, Hamamatsu 430-0807, Japan;
- Received November 5, 2012
- Revised April 16, 2013
- Accepted June 12, 2013
- First published July 13, 2013.
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