Jung, Sung-Hoon
Lee, Se-ryeon
Yang, Deok-Hwan
Lee, Seok
Yoon, Jae-Ho
Lee, Hyewon
Bang, Soo-Mee
Koh, Youngil
Park, Silvia
Kim, Dae Sik
Yhim, Ho-Young
Kim, Sung-Hyun
Lee, Ji-Hyun
Sohn, Sang Kyun
Song, Ik-Chan
Lee, Hong-ghi
Cheong, Jung-Won
Choi, Yunsuk
Shin, Ho-Jin
Article History
Received: 21 February 2018
Accepted: 8 September 2018
First Online: 26 September 2018
Compliance with ethical standards
: This study was approved by the Institutional Review Board of each participating hospital, in accordance with the Declaration of Helsinki.
: The authors declare that they have no conflict of interest.