Text and Data Mining valid from 2019-03-01
Received: 11 March 2019
Accepted: 14 March 2019
First Online: 20 March 2019
Compliance with ethical standards
: The authors have no source of funding and no conflict of interest to declare.
: The study was approved by the local ethical committee.
: The present study does not involve human participants and/or animals.
: Informed consent was obtained from each included patient.