Funding for this research was provided by:
KoreaHealth Technology R&D Project through the Korea Health Industry Development Institute (KHIDI), funded by the Ministry of Health & Welfare, Republic of Korea (HI17C1827)
Received: 19 July 2018
Accepted: 15 November 2018
First Online: 12 December 2018
Ethics approval and consent to participate
: The study will be performed in accordance with the Declaration of Helsinki, as amended by the 59th World Medical Association General Assembly in 2008. All the participants will provide signed, informed, written consent, stating that participation is voluntary and can be withdrawn at any time. Approval for the study has been obtained from the Institutional Review Board of Seoul National University Bundang Hospital (B-1702/383–003), Seoul National University Hospital (J-1705-080-855), Seoul National University Boramae Medical Center (20,170,516/20–2017-2/062), Ewha Womans University Mokdong Hospital (EUMC 2017–05–049-008). The trial protocol has been registered at ExternalRef removed (NCT03330626) (Ethical Approval Document).
: Not applicable.
: The authors declare that they have no competing interests.
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