Author(s):
1. Nataša Trtić, Republic of Srpska, Bosnia and Herzegovina
2. Zeljka Kojic, Medicinski fakultet Banja Luka , Republic of Srpska, Bosnia and Herzegovina
3. Radmila Arbutina, Medicinski fakultet Banja Luka , Republic of Srpska, Bosnia and Herzegovina
4. Valentina Veselinović, Republic of Srpska, Bosnia and Herzegovina
5. Saša Marin, Medicinski fakultet Banja Luka , Republic of Srpska, Bosnia and Herzegovina
6. Saša Dabić, Republic of Srpska, Bosnia and Herzegovina