Text and Data Mining valid from 2019-09-10
Received: 3 July 2019
Accepted: 30 August 2019
First Online: 10 September 2019
Ethics approval and consent to participate
: This manuscript is a retrospective case report that does not require the approval of the ethics committee by our institution; the database has been declared and anonymized in accordance with the ethical standards of our institution.
: Not applicable.
: The authors declare that they have no competing interests.