1. Research Centre for Genetic Engineering and Biotechnology “Georgi D. Efremov,” Macedonian Academy of Sciences and Arts, Skopje, Republic of Macedonia
2. “Adzibadem-Sistina” Hospital, Skopje, Republic of Macedonia
3. “Re-Medika” Hospital, Skopje, Republic of Macedonia
4. Research Centre for Genetic Engineering and Biotechnology “Geogi D. Efremov,” Macedonian Academy of Sciences and Arts, Skopje, Republic of Macedonia. Tel: +389-2-3235-410. Fax: +389-2-3155-434