by 정준철(Jun-Chul Chung), 노상익(Sang-Ik Noh), 이석구(Suk-Koo Lee), 김현학(Hyun-Hahk Kim)
Published in Annals of surgical treatment and research (2000)

by 허승(Seung Huh), 김동익(Dong-Ik Kim), 이순정(Sun-Joung Lee), 박홍석(Hong-Suk Park), 도영수(Young-Soo Do), 주인욱(In-Wook Choo), 김현학(Hyun-Hahk Kim), 이병붕(Byung-Boong Lee)
Published in Annals of surgical treatment and research (1999)

by 김동익(Dong Ik Kim), 이병붕(Byung Boong Lee), 정진상(Chin Sang Chung), 이광호(Kwang Ho Lee), 김용일(Yong Il Kim), 김현학(Hyun Hahk Kim)
Published in Annals of surgical treatment and research (1997)