À propos de cet article
Publié en ligne: 05 mai 2021
Pages: 81 - 87
Accepté: 08 déc. 2019
DOI: https://doi.org/10.2478/amb-2021-0013
Mots clés
© 2021 K. Vangelova et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Vangelova, K.
National Center of Public Health and Analyses – SofiaBulgaria
Dimitrova, I.
National Center of Public Health and Analyses – SofiaBulgaria
Cekova, I.
National Center of Public Health and Analyses – SofiaBulgaria
Stoyanova, R.
National Center of Public Health and Analyses – SofiaBulgaria