[1] Univ Hosp Brno, Dept Resp Dis & TB, Brno, Czech Republic
[2] Masaryk Univ Brno, Inst Biostat & Anal, Brno, Czech Republic
[3] Univ Hosp Plzen, Dept Pneumol, Plzen, Czech Republic
[4] Univ Hosp Praha Bulovka, Dept Pneumol, Prague, Czech Republic
[5] Univ Hosp Olomouc, Dept Pneumolgy, Olomouc, Czech Republic
[6] Univ Hosp Praha Motol, Dept Pneumol, Prague, Czech Republic
[7] Univ Hosp Hradec Kralove, Univ Hosp Ostrava Poruba, Dept Pneumol, Hradec Kralove, Czech Republic