Iconography features of portal vein system thrombosis in hepatocirrhosis patients after splenectomy 肝硬化脾切除术后门脉系统血栓形成的影像学表现
2.
The pituitary gland of silurus asotus has no median hump and vein system that can be found in other vertebrates 鲇脑垂体缺乏其他脊椎动物所具有的正中隆起和垂体门静脉系统，腺垂体内的各类激素分泌细胞直接接受发自下丘脑的神经纤维的控制。
