- Correspondence to Professor Hideo A Baba, Institute of Pathology, University Hospital of Essen, University of Duisburg-Essen, Hufelandstr. 55, Essen 45147, Germany;
- Received September 30, 2015
- Revised November 27, 2015
- Accepted November 30, 2015
- First published January 4, 2016.
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