- Correspondence to Dr Goran Stankovic, Department for Diagnostic and Catheterization Laboratories, Clinic for Cardiology, Clinical Center of Serbia, Dr Koste Todorovica 8, Belgrade 11000, Serbia;
- Received July 2, 2013
- Revised October 4, 2013
- Accepted October 8, 2013
- First published October 31, 2013.
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