- Correspondence to Professor Huihua Kenny Chiang, Institute of Biomedical Engineering, National Yang-Ming University, No. 155, Sec. 2, Linong Street, Beitou District, Taipei 1121, Taiwan;
- Received March 3, 2014
- Revised July 8, 2014
- Accepted September 21, 2014
- First published October 8, 2014.
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