- Correspondence to Dr Shaojie Chen, or Yuehui Yin, Department of Cardiology, The Second Affiliated Hospital of Chongqing Medical University, 76 Linjiang Road, Yuzhong District, Chongqing, 400010, China;
- Received March 27, 2012
- Accepted May 8, 2012
- First published August 6, 2012.
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