Funding for this research was provided by:
Russian Science Foundation (16-15-10327)
Text and Data Mining valid from 2019-07-24
Received: 23 January 2019
Accepted: 11 July 2019
First Online: 24 July 2019
Ethics approval and consent to participate
: As our experiments were conducted retrospectively with permanently anonymized patient data, our local ethics committee deemed the study exempt from the requirement for approval.
: Not applicable.
: Other than the grants listed in the acknowledgement section, the authors declare that they have no competing interests.