Guidance for endoscopy^W contrast retrograde:Find:Pt:Abdomen>Biliary ducts+pancreatic duct:Doc:RF
guidance for endoscopy^w contrast retrograde:find:pt:abdomen>biliary ducts+pancreatic duct:doc:rf
RF Guided BD+PD Endo--W contr Retro
rf guided bd+pd endo--w contr retro