Funding for this research was provided by:
Magyar Tudományos Akadémia (Bolyai 386/2017)
Received: 5 May 2020
Accepted: 10 September 2020
First Online: 21 September 2020
Ethics approval and consent to participate
: The institutional ethics committee of Semmelweis University (SE-RKEB 136/2019) has approved the present study according to the World Medical Association guidelines and Declaration of Helsinki, revised in 2000 in Edinburgh. As this is a retrospective case-control study, the need for informed written patient consent was waived by the ethics committee. In compliance with our institutional protocols, written informed consent was obtained before the CT and ultrasound scans from all patients. All patient data were analyzed anonymously.
: Not applicable.
: The authors declare that they have no competing interests.