Text and Data Mining valid from 2019-09-11
Received: 13 June 2019
Accepted: 7 August 2019
First Online: 11 September 2019
Compliance with ethical standards
: The authors declare no conflict of interest.
: The study design was approved by the Research Ethics Committee of our institution (No. B190059), which was conducted in accordance with the Declaration of Helsinki. Informed consent to participate in the present study was obtained from all patients.