Funding for this research was provided by:
Received: 10 December 2018
Accepted: 28 February 2019
First Online: 15 March 2019
Ethics approval and consent to participate
: This study was approved by the Institutional Review Board of College of Medicine of Yonsei University College of Medicine (IRB No. 1–2016-0068).
: Not applicable.
: TaeJeong Oh and Sungwhan An are employees of Genomictree, Inc. TaeJeong Oh and Sungwhan An are shareholders of Genomictree, Inc. The other authors state no other conflict of interest.
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