Text and Data Mining valid from 2018-08-23
Received: 12 April 2018
Accepted: 15 August 2018
First Online: 23 August 2018
Compliance with ethical standards
: The authors declare that they have no conflict of interest.
: All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1964 and its latter amendments.
: Was obtained from all patients for being included in the study.