Text and Data Mining valid from 2019-04-01
Received: 12 March 2019
Accepted: 20 March 2019
First Online: 1 April 2019
Compliance with ethical standards
: All procedures followed were in accordance with ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2000. Informed consent was obtained from all patients for being included in the study.