Received: 7 August 2020
Accepted: 22 October 2020
First Online: 29 October 2020
Ethics approval and consent to participate
: The patient has signed an informed consent. This study in terms of various vein reconstruction methods in liver transplantation was approved by the local institutional review board of the Tokyo Medical University (T2019-0088).
: A written consent for publication was obtained from the patient for the publication of all potentially identifiable clinical data and accompanying images. A copy of this consent form is available for review by the editor of this journal.
: The clinical datasets supporting the conclusions of this study were derived from the patient electronic files. Therefore, restrictions to availability apply due to data protection regulations. Anonymized data are, however, available from the corresponding author on reasonable request and with permission of the Tokyo Medical University Hachioji Medical Center and the local review board.
: The authors declare that they have no competing interests.