Development and external validation of prognostic scoring models for portal vein thrombosis: a multicenter retrospective study.

"Declarations Ethics approval and consent to participateAll procedures were performed following the ethical standards of the responsible committee on human experimentation (institutional and national) and in accordance with the Helsinki Declaration of 1975, as revised in 2008. This study was approved by the Human Participants Ethics Committees of the two hospitals ([2022] Research Approval No. 012). Informed Consent: We obtained written informed consent from all participants. Competing interestsThe authors have no competing interests to declare that are relevant to the content of this article. Competing interests The authors have no competing interests to declare that are relevant to the content of this article."

"Funding This work was supported by the Science and Technology Development Fund of Shanghai Pudong New Area (grant no. PKJ2021-Y07) and the Medical Discipline Construction Project of the Pudong Health Committee of Shanghai (grant no. PWYgf2021-02)."