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(A) Myeloid dendritic cells (MDCs) injected into groin lymph nodes under sonographic guidance. Local slightly hyperechoic (thin arrow) indicates the MDCs injected into the lymphocyte node (thick arrow). (B) Dendritic cell-cytokine-induced killer (DC-CIK) cells injected into abdominal cavity under sonographic guidance. Color Doppler (thin arrow) shows the process of DC-CIK cells injected into the abdominal cavity (thick arrow, parietal peritoneum).
