Authors
Ana Constantin
Pneumology III, Institute of Pneumophysiology Marius Nasta, Bucharest, Romania
Florin Mihălțan
Pneumology III, Institute of Pneumophysiology Marius Nasta, Bucharest, Romania
© 2020 Ana Constantin, Florin Mihălțan, published by Romanian Society of Pneumology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.