Author(s):
1. Irena Kasagić-Vujanović,
Republic of Srpska, Bosnia and Herzegovina
2. Žarko Gagić, Medicinski fakultet Banja Luka ,
Republic of Srpska, Bosnia and Herzegovina
3. Nina Okuka, Medicinski fakultet Banja Luka ,
Republic of Srpska, Bosnia and Herzegovina
4. Darija Knežević,
Republic of Srpska, Bosnia and Herzegovina