tokens: End - systolic left ventricular posterior wall dimension at the 5 - micrograms / kg per min dobutamine infusion for the doxorubicin - treated group was 14 . 1 + / - 2 . 4 mm versus 19 . 3 + / - 2 . 6 mm for control subjects ( p less than 0 . 01 ) . ( ABSTRACT TRUNCATED AT 250 WORDS )