P. J. Stryjewski
Chrzanow City Hospital
Poland

Piotr J. Stryjewski — MD, PhD, Cardiology Department

A. Kuczaj
Medical University of Silesia, Katowice
Poland

 Agnieszka Kuczaj — MD, PhD, 2nd Department of Cardiology, Zabrze 

R. Braczkowski
Medical University of Silesia, Katowice
Poland

Ryszard Braczkowski — MD, PhD, Department of Public Health

Ja. Nessler
Medical School of Jagiellonian University, John Paul II Hospital, Krakow
Poland

Jadwiga Nessler — MD, PhD, Coronary Disease Department, Institute of Cardiology

E. N. Kozielska
Medical University of Silesia, Katowice
Poland

Ewa Nowalany-Kozielska — MD, PhD, 2nd Department of Cardiology