Received: 12 August 2020
Accepted: 24 November 2020
First Online: 7 January 2021
Ethics approval and consent to participate
: This study was exempted by the Medical Research Ethics Committee Erasmus MC (Rotterdam, the Netherlands; registration number MEC-2018-1254). Since only observational retrospective data were collected, written informed consent was not required.
: Not applicable.
: The authors declare that they have no competing interest.