Naychov, Zheko, UH `Lozenets`, Sofia
Nedev, Nikolay, Medical University of Varna
Negreva, M., St. Marina University Hospital, Varna
Negreva, M., First Clinic of Cardiology, St. Marina University Hospital of Varna
Nenkov, Rumen, Medical University of Varna
Nikolaeva, Simona, Department of Cardiology, Dobrich Hospital
Nikolova, N., Naval Academy of Varna
Nincheva, Polina, University of National and World Economy, Sofia
Novak, Martin, St. Anne's University Hospital Brno, Brno, Czech Republic, SBALK Varna, Bulgarian Cardiac Institute, Bulgaria
Novák, Martin, Bulgarian Cardiac Institute

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