Figure 3: Radiation dose-survival curves of SW-1573 human lung cancer cells exponentially growing (left) without IdUrd (open triangles) and after incubation with 4 M IdUrd (closed triangles) and in plateau-phase (right) plated immediately after irradiation (dashed lines) and plated 24 h after irradiation (solid lines) without IdUrd (open symbols) and after incubation with 4 ÁM IdUrd (closed symbols). Each point represents the mean value of 3 different experiments ▒ sem.