Guidance for endoscopy^W contrast retrograde:Find:Pt:Abdomen>Biliary ducts:Doc:RF
guidance for endoscopy^w contrast retrograde:find:pt:abdomen>biliary ducts:doc:rf
Guidance for endoscopy^W contrast retrograde:Finding:To identify measures at a point in time:Abdomen>Biliary ducts:Document:Radiofluoroscopy
guidance for endoscopy^w contrast retrograde:finding:to identify measures at a point in time:abdomen>biliary ducts:document:radiofluoroscopy