Correction to: Stem Cell Research & Therapy (2019) 10:105 https://doi.org/10.1186/s13287-019-1207-z

The original article contains an error in Fig. 2B whereby the sub-panel in column 2, row 3 is incorrect. The corrected figure can be viewed ahead.

Fig. 2
figure 2

Characterization of human Wharton’s jelly mesenchymal stem cells (hWJ-MSC) and hWJ-MSC-derived exosomes. a Representative bright field microscopy image of hWJ-MSC. b Representative flow cytometry histograms of hWJ-MSC at passage 6. c Representative electron microscopy image of hWJ-MSC-derived exosomes (d) revealing a median diameter of 43 nm. e Representative Exo-Check antibody array of isolated exosomes