CD274 and neoplasm: The objectives of the study were to assess (1) toxicity and biodistribution of a single intratumorally (i.t.)administered CF33-hNIS-anti-PD-L1 in tumor-bearing mice in 3 weeks and (2) toxicity and biodistribution of repeated intratumorally administered CF33-hNIS-anti-PD-L1 in tumor-bearing mice in 12 days and after a 9 day recovery.