Text and Data Mining valid from 2019-07-16
Received: 9 May 2019
Accepted: 8 July 2019
First Online: 16 July 2019
Ethics approval and consent to participate
: This study was approved by the institutional review boards at both institutes.
: This study was an observational study. Thus, obtaining a consent from a patient was waived by the institutional review board.
: The authors declare that they have no competing interests.