Needle knife sphincterotomy: a necessary tool.
I
I
Katuscak
M
M
Horakova
P
P
Frlicka
V
V
Straka
J
J
Macko
D002760:Cholangiopancreatography, Endoscopic Retrograde; D006801:Humans; D016717:Sphincterotomy, Endoscopic / Q000295:instrumentation / Q000379:methods*