Correction to: npj Regenerative Medicine https://doi.org/10.1038/s41536-021-00198-0, published online 19 January 2022

In the Acknowledgements section, “This work was supported by Korean Health Technology R&D Project (NRF-2017M3A9B4061407, NRF-4792018R1C1B6008671, 2018M3A9H3020844) from the National Research Foundation of Korea as well as internal funding from iPS Bio, Inc.” should have read “This work was supported by Korean Health Technology R&D Project (NRF-2017M3A9B4061407, NRF-4792018R1C1B6008671, 2018M3A9H3020844) from the National Research Foundation of Korea.” The original article has been corrected.