1.
Yordanova V, Dimitrova S, Marinova M, Valcheva D, Kirchev V, Tcherkezov T. Retrospective Analysis of COVID 2020 Epidemiological Data in the Town of Kardzhali. ijmsci [Internet]. 2022 Jan. 16 [cited 2024 Sep. 11];9(01):5924-30. Available from: https://valleyinternational.net/index.php/ijmsci/article/view/3345