comparison of calcified and noncalcified gallbladder calculi revealed that calcified stones required 50 % more shock waves for successful fragmentation , fragments cleared considerably more slowly from the gallbladder , and patients had a higher frequency of acute pancreatitis ( 5 % vs 2 % ) and transient hematuria ( 8 % vs 3 % ) .
C0008350
gallbladder calculi
C0006736
stones