Authors
K. Kilova
Department of Medical Informatics, Biostatistics and e-Learning, Faculty of Public Health, Medical University of Plovdiv – Plovdiv, Bulgaria
S. Uzunova
Faculty of Public Health, Medical University of Plovdiv – Plovdiv, Bulgaria
© 2020 K. Kilova, S. Uzunova, published by Sofia Medical University
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.