[1] Community Hlth Ctr Dr Adolfa Drolca Maribor, Ulica Talcev 5, Maribor 2000, Slovenia
[2] Univ Maribor, Fac Med, Dept Family Med, Taborska Ulica 8, Maribor 2000, Slovenia
[3] Univ Ljubljana, Fac Med, Dept Family Med, Poljanski Nasip 58, Ljubljana 1000, Slovenia