Correction.

It has recently come to the authors’ attention that the final activity concentrations (kBq/ml) reported for the treatment of the cells in the proliferation and colony formation assays had not been properly updated. For those assays, the cells were first treated with unconjugated antibody (blocking) or just medium, having the final volumes/well be greater by 60 ml and 1ml for each assay, respectively. This corresponds to actual activity concentrations of (0, 0.116, 0.231, 0.578, 1.16, 1.74, 2.31 and 4.63) kBq/ml and (0, 0.123, 0.247, 0.617, 1.23 and 2.47) kBq/ml, instead of (0, 0.185, 0.370, 0.925, 1.85, 2.78, 3.70 and 7.40) kBq/ml and (0, 0.185, 0.370, 0.925, 1.85 and 3.70) kBq/ml, for the proliferation and colony formation assays, respectively.