[1] Nicholas Copernicus Univ, Ludwik Rydygier Coll Med Bydgoszcz, Dept Gastroenterol Vasc Dis & Internal Med, Torun, Poland
[2] Jan Biziel Univ Hosp, Clin Ward Vasc & Internal Dis, PL-85168 Bydgoszcz, Poland
[3] Nicholas Copernicus Univ, Ludwik Rydygier Coll Med Bydgoszcz, Dept Principles Clin Med, Torun, Poland
[4] Nicholas Copernicus Univ, Ludwik Rydygier Coll Med Bydgoszcz, Dept Gastroenterol Nursing, Torun, Poland
[5] Nicholas Copernicus Univ, Ludwik Rydygier Coll Med Bydgoszcz, Dept Cardiol & Internal Med, Student Sci Grp, Torun, Poland
[6] Nicholas Copernicus Univ, Ludwik Rydygier Coll Med Bydgoszcz, Dept Cardiol & Internal Med, Torun, Poland