Funding for this research was provided by:
Javna Agencija za Raziskovalno Dejavnost RS
Received: 2 August 2017
Accepted: 29 January 2018
First Online: 5 February 2018
Ethics approval and consent to participate
: Approval for the study was obtained from The Medical Ethics Committee of the Republic of Slovenia, the Protocol Review Board (MZ 0120–28/2016–2), and Ethics Committee of the Institute of Oncology (ERID-KSOPKR/77). A written consent for retrospective study was waived by the Protocol Review Board and the Ethics Committee of the Institute of Oncology (ERID-KSOPKR/77).
: Not applicable.
: The authors declare that they have no competing interests.
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