You HS, Lee Jw, Kim Ys, Kim Y, Lee HC, Hwang JY, Yang W, Kang HT
Lee E, Koh Y, Hong J, Eom HS, Yoon SS
Yang M, Ahn SY, Jo HS, Sung SI, Chang YS, Park WS, Korean Neonatal Network
Jung E, Ro YS, Ryu HH, Shin SD, Moon S
Cha Y, Jang SY, Yoo JI, Choi HG, Hwang JW, Choy W