ck-mb as a percentage of total ck at peak serum ck-mb ( 16 +/- 1 % ) ( mean +/- sem ) was of similar order as the percentage of ck-mb in the myocardium ( papillary muscle 20.9 +/- 1.3 % , right auricle 18.2 +/- 0.5 % ) .
C0027061
myocardium
C0030352
papillary muscle