Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 49 8 2020 07 30 1573 1575 EN Miroslava IVANOVA Department of Informatics and Mathematics, Trakia University, 6000 Stara Zagora, Bulgaria Lilko DOSPATLIEV Department of Pharmacology, Animal Physiology and Physiological Chemistry, Trakia University, 6000 Stara Zagora, Bulgaria Denitsa GRIGOROVA Department of Probability, Operations Research and Statistics, Sofia University "St. Kliment Ohridski", 1164 Sofia, Bulgaria Penko PAPAZOV Department of Organic Chemistry and Inorganic Chemistry, University of Food Technology, 4000 Plovdiv, Bulgaria 2018 09 19 2018 09 30 No Abstract https://ijph.tums.ac.ir/index.php/ijph/article/view/14755 https://ijph.tums.ac.ir/index.php/ijph/article/download/14755/6954