- Correspondence to Professors Chunde Bao and Qiang Guo, Rhematology Department of Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, No.145, Shangdong (c) Road, 200001, Shanghai, China; and
- Received January 23, 2014
- Revised March 16, 2014
- Accepted March 22, 2014
- First published April 16, 2014.
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