- Correspondence to Dr Celalettin Ustun, Division of Hematology, Oncology and Transplantation, Department of Medicine, University of Minnesota, 14-100 PWB, 516 Delaware Street SE, Minneapolis, MN 55455, USA;
- Received 28 January 2015
- Revised 16 March 2015
- Accepted 4 April 2015
- Published online 2 May 2015.
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