1. a Department of Nursing, Faculty of Social Sciences and Health Care, Constantine the Philosopher University in Nitra , Nitra , , Slovak Republic
2. b Department of Nursing, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava , Bratislava , Slovak Republic
3. c Department of Nursing, Faculty of Health Sciences, Palacký University in Olomouc , Olomouc , Czech Republic