- Correspondence to Dr Waldemar Myszka, Department of Clinical Biochemistry and Laboratory Medicine, Poznan University of Medical Sciences, 6 Grunwaldzka Str. Poznan 60-780, Poland;
- Received November 20, 2014
- Revised January 15, 2015
- Accepted January 26, 2015
- First published February 18, 2015.
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