1. Research Centre for Genetic Engineering and Biotechnology “Georgi D Efremov”; Macedonian Academy of Sciences and Arts; Skopje Republic of Macedonia
2. Labaratory for Histopathology; Clinical Hospital “Sistina”; Skopje Republic of Macedonia
3. University Clinic for Urology; University Clinical Centre “Mother Theresa”; Skopje Republic of Macedonia
4. Institute of Pathology; Medical Faculty; University “St. Cyril and Methodius”; Skopje Republic of Macedonia