Table 2.

ED50 values for Ewing sarcoma cells with fibroblast-like morphology.

Cell Line	ED50 [PFU/Cell]	R 2	Observation Time
MHH-ES	0.32	0.922	256 h
SK-ES-1	0.11	0.972	215 h
TC-71	1.04	0.978	120 h

ED50 values for the three Ewing sarcoma cells with fibroblast-like morphology. The ED50 values were determined by real-time proliferation measurements (xCelligence, Roche, Basel, Switzerland). An approximation method using a sigmoid dose-response graph was used as described under Materials and Methods.