Nieznańska, Małgorzata Nigro, Gerardo Nigro, Gerardo (Italy) Nigro, Gerardo Nihoyannopoulos, Petros Nihoyannopoulos, Petros Nikfard, Maryam Nikinmaa, Mikko Nikisch, Elżbieta Niklas, Arkadiusz Niklas, Arkadiusz, Department of Hypertension, Angiology and Internal Medicine, Poznań University of Medical Sciences, Poland Niklas, Arkadiusz Andrzej Niklas, Arkadiusz, Poznan University of Medical Sciences Niklas, Arkadiusz Niklas, Arkadiusz, Department of Hypertension, Angiology, and Internal Medicine, Poznan University of Medical Sciences, Poznan, Poland Niklas, Arkadiusz, Department of Hypertension, Angiology and Internal Medicine, Poznan University of Medical Sciences, Poznan, Poland Niklas, Arkadiusz A., Department of Hypertension, Angiology and Internal Medicine, Poznan University of Medical Sciences, Poland Niklas, Karolina Niklas, Karolina, Department of Rheumatology and Internal Diseases, Poznan University of Medical Sciences, Poland Niklas, Karolina, Department of Rheumatology and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland (Poland) Niklas, Karolina, Department of Rheumatology and Internal Diseases, Poznan University of Medical Sciences, Poznan, Poland Niklewski, Tomasz, Dept of Cardiac Surgery and Transplantology, Silesian Center For Heart Diseases Zabrze Niklewski, Tomasz, Dept. of Cardiac Surgery, Silesian Center For Heart Diseases, Zabrze, Poland Niklewski, Tomasz Nikodemska, Iwona