Article History
Received: 5 April 2019
Revised: 12 May 2019
Accepted: 21 May 2019
First Online: 5 June 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interests.
: This study is mainly classified as a retrospective study. All procedures performed in the study involving radiological images of human subjects and were in accordance with the ethical standards of the institutional and/or national research comittee and with the latest Helsinki declaration.