[1] Univ Rzeszow, Inst Med Sci, Coll Med Sci, Dept Normal & Clin Anat, Leszka Czarnego 4, PL-35615 Rzeszow, Poland
[2] Med Univ Lodz, Dept Prevent Cardil & Lipidol, Rzgowska 281-289, PL-93338 Lodz, Poland
[3] Mastej Med Ctr, Primary Care Clin, Stasz 21, PL-38200 Jaslo, Poland
[4] Ctr Postgrad Med Educ, Dept Internal Med & Geriatr Cardiol, Czerniakowska 231, PL-00416 Warsaw, Poland
[5] Univ Opole, Fac Med, Dept Cardiol, Oleska 48, PL-45052 Opole, Poland
[6] Jagiellonian Univ, Fac Med, Dept Cardiol 1, Intervent Electrocardiol & Hypertens,Med Coll, Jakubowskiego 2, PL-30688 Krakow, Poland
[7] Med Univ Gdansk, Dept Hypertens & Diabetol, Debinki 7, PL-80952 Gdansk, Poland
[8] Natl Inst Cardiol, Dept Epidemiol Cardiovasc Dis Prevent & Hlth Prom, Niemodlinska 33, PL-04635 Warsaw, Poland
[9] Med Univ Silesia, Fac Med Zabrze, Dept Pharmacol, Jordana 38, PL-41800 Zabrze, Poland
[10] Jagiellonian Univ, Dept Family Med, Med Coll, Bochenska 4, PL-31061 Krakow, Poland
[11] Univ Opole, Dept Family Med & Publ Hlth, Fac Med, Oleska 48, PL-45052 Opole, Poland
[12] Imperial Coll London, Imperial Clin Trials Unit, Stadium House 68 Wood Lane, London W12 7RH, England
[13] Imperial Coll London, Dept Primary Care & Publ Hlth, St Dunstans Rd, London W6 8RP, England
[14] Imperial Coll London, Dept Epidemiol & Biostat, Sir Michael Uren Hub, 86 Wood Lane, W12, London, England