Author(s):
1. Nina Babic, Republic of Srpska, Bosnia and Herzegovina
2. Dragana Zabic, Republic of Srpska, Bosnia and Herzegovina
3. Zorica Jerkic, Republic of Srpska, Bosnia and Herzegovina
4. Stefan Cetic, Republic of Srpska, Bosnia and Herzegovina
5. Dragana Gajic, Republic of Srpska, Bosnia and Herzegovina
6. Dijana Jelić, Medicinski fakultet Banja Luka , Republic of Srpska, Bosnia and Herzegovina

Abstract