Snezhkina, Anastasiya V.
Lukyanova, Elena N.
Zaretsky, Andrew R.
Kalinin, Dmitry V.
Pokrovsky, Anatoly V.
Golovyuk, Alexander L.
Krasnov, George S.
Fedorova, Maria S.
Pudova, Elena A.
Kharitonov, Sergey L.
Melnikova, Nataliya V.
Alekseev, Boris Y.
Kiseleva, Marina V.
Kaprin, Andrey D.
Dmitriev, Alexey A.
Kudryavtseva, Anna V.
Article History
First Online: 9 April 2019
Ethics approval and consent to participate
: The study was approved by The Ethics committee of Vishnevsky Institute of Surgery, Ministry of Health of the Russian Federation. The study was conducted in accordance with the principles outlined in the Declaration of Helsinki (1964).
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.