00368nas a2200109   4500000000100000008004100001260004400042100001500086700001300101700001600114245012800130       2024                            d  c17 September 2024bIEEEaKunming, China1 aSheng Deng1 aXinde Li1 aChuanfei Hu00aMedical Image Segmentation of Liver Tumors with Multi-phase Deficiency Based on Hierarchical Knowledge Distillation Network