“… adriamycin treated rabbits had a lower contraction … controls when maximally activated with calcium , at 11.1(0.9)% shortening (n = 11) v 13.6(0.5)% (n = 14), p less than … with isoprenaline, at 11.6(0.6)% shortening v 13.1(0.4)%, p less than 0.05.”