(Q73218108)
Statements
Endoscopic retrograde cholangiopancreatography and needle-knife sphincterotomy in patients with Billroth II gastrectomy: a comparative study of the forward-viewing endoscope and the side-viewing duodenoscope (English)
Kim MH
Lee SK
Lee MH
Myung SJ
Yoo BM
Seo DW
1 February 1997