Text and Data Mining valid from 2019-06-10
Received: 22 November 2018
Accepted: 4 June 2019
First Online: 10 June 2019
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: The Alfred Hospital Ethics Committee—approval 506/16.
: Research involving human participants.
: Informed consent was obtained from all individual participants included in the study.