Sofia University “St. Kl. Ohridski”, Faculty of Chemistry and Pharmacy, Department of Analytical Chemistry, Laboratory of Biocoordination and Bioanalytical Chemitsry, 1 J. Bourchier Ave. 1164, Sofia, Bulgaria, TEL.: +359-2-8161-609 • FAX +359-2-9625438
Military Medical Academy, Emergency Toxicology Clinic, Sofia, Bulgaria