Text and Data Mining valid from 2019-02-08
Received: 28 November 2018
Accepted: 27 January 2019
First Online: 8 February 2019
Compliance with ethical standards
: The authors have no conflict of interest.
: This article did not involve human participants and/or animals.
: No procedures were conducted by the authors on patients; there was no need of informed consent. This review was in agreement with the Good Clinical Practice.