[1] Macedonian Acad Sci & Arts, Res Ctr Genet Engn & Biotechnol Georgi D Efremov, Skopje 1000, Macedonia
[2] Univ Stt Cyril & Methodius, Fac Med, Pediat Clin, Skopje, Macedonia
[3] Private Hlth Org Dr Ina, Skopje, Macedonia
[4] Private Hlth Org Sistina, Skopje, Macedonia
[5] Fac Med, Clin Gynaecol & Obstet, Skopje, Macedonia