First Online: 13 February 2018
Ethics approval and consent to participate
: Participation in this project was based on the informed consent. All analyses were based on the archival data that were stored in the database with no current connection to the patients’ identifiers. The study protocol was approved by Internal Review Board of Atlas Biomed.
: 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.