Funding for this research was provided by:
Bio & Medical Technology Development Program of the National Research Foundation (NRF) & funded by the Korean government (2017M3A9E4048170)
Text and Data Mining valid from 2019-11-28
Received: 30 July 2019
Accepted: 3 October 2019
First Online: 28 November 2019
Ethics approval and consent to participate
: Ethics approval was not required. Information of the patient has all been anonymized.
: This manuscript does not contain any individual person’s identifier (including individual details, images, or videos).
: The authors declare that they have no competing interests.