- Problems in Endoscopic Sphincteropapillotomy
- Yeong Cheol Yang, Jae Il Myeong, Hyang Soon Yeo, Hong Bae Park
- Korean J Intern Med. 1987;2(1):97-106.
- Endoscopic Sphincteropapillotomy: An Analysis of 108 Cases
- Jong Beom Choi, Yeong Cheol Yang, Jeong Ryeol Han, Pan Ki Jeong, Seung Hee Ha, Hyang Soon Yeo, Hong Bae Park
- Korean J Intern Med. 1986;1(2):205-214.