[1] Masaryk Univ, Univ Hosp Brno, Fac Med, Dept Oral & Maxillofacial Surg, Jihlayska 20, Brno 62500, Czech Republic
[2] Masaryk Univ, Univ Hosp Brno, Fac Med, Dept Paediat Anaesthesiol & Intens Care Med, Kamenice 5, Brno 62500, Czech Republic
[3] Masaryk Univ, Fac Med, Dept Simulat Med, Kamenice 5, Brno 62500, Czech Republic
[4] Masaryk Univ, Univ Hosp Brno, Fac Med, Dept Paediat Otorhinolaryngol, Cernopolni 9, Brno 66263, Czech Republic