Erratum

In [1], there are errors in figures 1 and 2. In Figure 1 the y-axes of the graphs at the bottom of the figure labelled here as ‘Total-TNFα⁺’ were incorrectly labelled as ‘Total-TNFγ⁺’ in the published version. In Figure 2 the pale blue segment of the pie charts (at the bottom of the key) labelled here as ‘Single-TNFα⁺’ was incorrectly labelled as ‘Single-TNFγ⁺’ in the published version.

Figure 1.

 

Figure 2.

 

The corrected figures are as follows.

We apologize for this error.