1. Mice were treated every two days for ten times (siPD-L1: 0.75 mg/kg/time, IV injection). (g) Antitumor activity of D5W, anti-PD-L1 antibody, and Nanosac in Balb/c mice bearing CT26 tumors. Mice were treated every two days for five times (anti-PD-L1 antibody: 200 ?g/mouse/time
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