Kan, N. E.
Khachatryan, Z. V.
Chagovets, V. V.
Starodubtseva, N. L.
Amiraslanov, E. Yu.
Tyutyunnik, V. L.
Lomova, N. A.
Frankevich, V. E.
Article History
Received: 22 October 2019
Revised: 25 March 2020
Accepted: 9 April 2020
First Online: 2 November 2020
COMPLIANCE WITH ETHICAL STANDARDS
: The study was approved by the Local Ethics Committee of the Kulakov NMRC OGP. All patients signed informed consent to participate in the study.
: The authors declare that they have no conflicts of int-erest.