Lee, Jennifer http://orcid.org/0000-0001-6873-6629
Koh, Jung Hee http://orcid.org/0000-0002-6617-1449
Kim, Ji-Won http://orcid.org/0000-0002-0498-5762
Sung, Yoon-Kyoung http://orcid.org/0000-0001-6691-8939
Lee, Shin-Seok http://orcid.org/0000-0001-6810-7355
Choe, Jung Yoon http://orcid.org/0000-0003-0957-0395
Shim, Seung-Cheol http://orcid.org/0000-0002-3199-359X
Kim, Hyun-Sook http://orcid.org/0000-0001-9213-7140
Kim, Hae-Rim http://orcid.org/0000-0002-1911-6236
Kim, Ji-Min http://orcid.org/0000-0002-3894-3413
Kwon, Sung Ryul http://orcid.org/0000-0003-1262-2790
Kim, Hyun-Ok http://orcid.org/0000-0002-0904-1584
Shin, Kichul http://orcid.org/0000-0002-6749-7598
Lee, Chang Hoon http://orcid.org/0000-0002-7351-3806
Chung, So-Hyang http://orcid.org/0000-0002-6558-9376
Kwok, Seung-Ki http://orcid.org/0000-0002-6142-8364
Ju, Ji Hyeon http://orcid.org/0000-0002-1381-5466
Park, Sung-Hwan http://orcid.org/0000-0003-1711-2060
Funding for this research was provided by:
Korean Health Technology R&D Project, Ministry of Health & Welfare, Republic of Korea (HI13C0016)
Article History
Received: 21 May 2018
Accepted: 16 July 2018
First Online: 20 July 2018
Compliance with ethical standards
:
: Jennifer Lee, Jung Hee Koh, Ji-Won Kim, Yoon-Kyoung Sung, Shin-Seok Lee, Jung Yoon Choe, Seung-Cheol Shim, Hyun-Sook Kim, Hae-Rim Kim, Ji-Min Kim, Sung Ryul Kwon, Hyun-Ok Kim, Kichul Shin, Chang Hoon Lee, So-Hyang Chung, Seung-Ki Kwok, Ji Hyeon Ju, and Sung-Hwan Park declare that they have no conflict of interest.
: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
: Informed consent was obtained from all individual participants included in the study.