Text and Data Mining valid from 2019-04-16
Received: 9 January 2019
Accepted: 1 April 2019
First Online: 16 April 2019
: Compliance with ethical standards
: The authors declare they have no potential conflicts of interest to disclose.
: This was a retrospective study involving Human Participants treated according to standard clinical practice. All permissions granted by competent Ethics Committees and other authorities were obtained and all informed consents required by the existing law and regulations were collected.