- Correspondence to Dr Chien-Feng Li, Department of Pathology, Chi-Mei Medical Center, No. 901, Chunghwa Road, Yongkang Dist, Tainan City 710, Taiwan;
- Received October 14, 2012
- Revised February 22, 2013
- Accepted February 25, 2013
- First published March 28, 2013.
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