About this article
Published Online: May 21, 2020
Page range: 56 - 59
Received: Feb 01, 2019
Accepted: Feb 01, 2019
DOI: https://doi.org/10.2478/amb-2020-0009
Keywords
© 2018 G. Yankov et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
Yankov, G.
Department of Respiratory Diseases, Medical Faculty, Medical University – SofiaBulgaria
Mekov, E.
Department of Respiratory Diseases, Medical Faculty, Medical University – SofiaBulgaria
Kovacheva, M.
Department of Gastroenterology, Medical Faculty, Medical University – SofiaBulgaria
Vladimirov, B.
Department of Gastroenterology, Medical Faculty, Medical University – SofiaBulgaria
Petkov, R.
Department of Respiratory Diseases, Medical Faculty, Medical University – SofiaBulgaria