[1] Masaryk Univ, Univ Hosp Brno, Fac Med, Dept Hematol Oncol & Internal Med, Brno, Czech Republic
[2] Masaryk Univ, Univ Hosp Brno, Fac Med, Dept Radiol & Nucl Med, Brno, Czech Republic
[3] Masaryk Univ, Univ Hosp Brno, Fac Med, Dept Surg, Brno, Czech Republic
[4] Masaryk Univ, Univ Hosp Brno, Fac Med, Dept Gastroenterol & Internal Med, Brno, Czech Republic
[5] Masaryk Univ, Masaryk Mem Canc Inst, Fac Med, Dept Comprehens Canc Care, Brno, Czech Republic
[6] Masaryk Mem Canc Inst, Dept Gastroenterol & Digest Endoscopy, Brno, Czech Republic
[7] Palacky Univ Olomouc, Univ Hosp Olomouc, Fac Med & Dent, Dept Internal Med Gastroenterol & Geriatr 2, Olomouc, Czech Republic