Fig. 4From: Early differentiating between the chemotherapy responders and nonresponders: preliminary results with ultrasonic spectrum analysis of the RF time series in preclinical breast cancer modelsLongitudinal changes in the RF time series parameters in the responding tumors. Bar graph summarize the fold changes of six RF time series parameters compared with baseline. *P < 0.05, ** P < 0.01, *** P < 0.001 for comparison between control and treated tumors. The parameters were shown as medians and 25th~75th percentilesBack to article page