a review of the gall-bladder content of the 193 patients that underwent a cholecystectomy at the university hospital of lausanne , switzerland , in 1977 , was done in order to find out the diagnostic accuracy of sonographic examination of the gall-bladder , oral cholecystography and intravenous cholangiography .
C0016976
gall-bladder
C0008320
cholecystectomy