Author(s):
1. Ljubiša Kucurski, JU Visoka medicinska škola Prijedor::Nikole Pašića 4a, Republic of Srpska, Bosnia and Herzegovina
2. Jelena Pavlović, Republic of Srpska, Bosnia and Herzegovina
3. Ljiljana Savić, JU Visoka medicinska škola Prijedor, Republic of Srpska, Bosnia and Herzegovina
4. Marko Savić, JZU Dom zdravlja Prijedor, Republic of Srpska, Bosnia and Herzegovina