Diagnostic methods of bile ducts and gall-bladder are all, except:

Diagnostic methods of bile ducts and gall-bladder are all, except:

Diagnostic methods of bile ducts and gall-bladder are all, except: 


A. Retropneumoperitoneum
B. Duodenal zondation
C. Choledochoscopy
D. Cholecystography
E. Cholangiography


Answer: A. Retropneumoperitoneum


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