Author(s):
1. Vladan Mirjanić, Medicinski fakultet Banja Luka , Republic of Srpska, Bosnia and Herzegovina
2. Đorđe Mirjanić, JZU Dom zdravlja Banja Luka , Republic of Srpska, Bosnia and Herzegovina
3. Marijana Arapović Savić, Medicinski fakultet Banja Luka , Republic of Srpska, Bosnia and Herzegovina
4. A. Arbutina, Medicinski fakultet Banja Luka , Republic of Srpska, Bosnia and Herzegovina
5. Mirjana Umićević-Davidović,

Abstract