Funding for this research was provided by:
Samsung Science & Technology Foundation (SSTF-BA1502-13)
National Research Foundation funded by the Korean Government (NRF-2016935834)
Text and Data Mining valid from 2020-01-04
Received: 4 July 2019
Accepted: 18 December 2019
First Online: 4 January 2020
Ethics approval and consent to participate
: All experiments were conducted in accordance with a protocol approved by the Seoul National University guidelines for research ethics.
: Not applicable.
: The authors declare that they have no competing interests.