Figure 1From: Determination of cell survival after irradiation via clonogenic assay versus multiple MTT Assay - A comparative studyIrradiation induced delay of a cell growth curve: cells were irradiated at t = 20 h after seeding, red curve: control at 0 Gy, grey curve: irradiated cells with a delay of about 20 h in growth, used as basis for calculation of multiple MTT survival.Back to article page