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Article History

Received: 22 March 2020

Accepted: 7 July 2020

First Online: 1 August 2020

Compliance with ethical standards

:

: The authors declare that they have no conflict of interest.

: This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of University Hospital of Liege, Belgium (B707201835169).

: Informed consent was obtained from all individual participants included in the study.

: Not applicable.

: The data sets generated and/or analysed during the current study are available from the corresponding author on reasonable request.

: We used the software Excel and R.