- Correspondence to Dr Wataru Aoi, Laboratory of Health Science, Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, 1-5 Hangi-cho Shimogamo, Sakyo-ku, Kyoto 606-8522, Japan;
- Revised June 16, 2012
- Accepted July 3, 2012
- First published July 31, 2012.
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