( 3 ) the interval strength curve of guinea-pig myocardial cells passed through a maximum which was 0.26 +/- 0.06 micron ( mean +/- s.d . ) at a pacing interval of 2 s whereas myocardial cells of mice showed a rise of shortening with increasing intervals reaching a maximum at the rested state ( 0.24 +/- 0.08 micron ) .
C0027061
myocardial
C0225828
myocardial cells