Author(s):
1. Ognjenka Janković, Medicinski fakultet Banja Luka , Republic of Srpska, Bosnia and Herzegovina
2. Helena Golubović, Republic of Srpska, Bosnia and Herzegovina
3. Tijana Adamovic, University of Banja Luka, School of Medicine, Dentistry Study Program, Republic of Srpska, Bosnia and Herzegovina
4. Vladan Mirjanić, Republic of Srpska, Bosnia and Herzegovina