[1] Med Univ Silesia, Fac Hlth Sci Katowice, Dept Cardiol, Ul Ziolowa 45-47, PL-40635 Katowice, Poland
[2] Independent Publ Prov Hosp, Dept Cardiol, Jana Pawla II 10, PL-43170 Zamosc, Poland
[3] Med Univ Bialystok, Dept Cardiol, M Sklodowskiej Curie 24A, PL-15089 Bialystok, Poland
[4] Nicolaus Copernicus Univ Torun, Dept Hlth Promot, Coll Med Bygdoszcz, Sklodowskiej Curie 9, PL-87100 Bygdoszcz, Poland
[5] Minist Internal Affairs & Adm, Dept Cardiol, Cent Clin Hosp, Woloska 137, PL-02507 Warsaw, Poland
[6] Jagiellonian Univ, Inst Nursing & Midwifery, Med Coll, Michalowskiego 12, PL-31008 Krakow, Poland
[7] Jagiellonian Univ Krakow, Inst Cardiol, Coll Med, PL-31008 Krakow, Poland
[8] Med Ctr Postgrad Educ, Dept Internal Med & Gerontol, PL-01813 Warsaw, Poland