Erratum to: Age (Dordr). 2015 Oct;37(5):93.

DOI: 10.1007/s11357-015-9829-2

The article contains an error.

The annotation of cell count and percent in Figure 1A were switched in the published paper. Here we provide the corrected version of Figure 1. The error does not change the conclusions of the paper. We apologize for any inconvenience that it may have caused.

figure a