Text and Data Mining valid from 2019-01-26
Received: 28 August 2018
Accepted: 11 January 2019
First Online: 26 January 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: This study was performed in accordance with the Declaration of Helsinki and was approved by the Ethics Committee of the University Hospital of Geneva, Switzerland (CER: 13-241).
: Informed consent was obtained from all individual participants included in the study.