Figure 2.

Correlation of D_q, D₀, and D₁₀ values among 31 human oesophageal carcinoma cell lines. Arrows indicate the KYSE190 cell line, and broken arrows, KYSE70 cell line. The dose survival responses were analysed using a multitarget model, S = 100[1 − (1 − e^−D/Do) ^N]. D₀ is the dose that causes the straight-line portion of the survival curve to decrease to 37%, D_q, the dose at shoulder part of dose-survival curve, and D₁₀, the dose that decrease the cell survival to 10%. D_q value of KYSE190 cells was close to zero.