- Correspondence to R Hájek, University Hospital Ostrava and Faculty of Medicine, University of Ostrava, 17 listopadu 1790, Ostrava 708 52, Czech Republic;
- Received January 6, 2017
- Revised March 3, 2017
- Accepted March 7, 2017
- First published March 30, 2017.
Abstract in Czech
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- Abstract in Czech - Online abstract
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