Responses of cell surface antigens to X-rays or carbon-ion beams.

CD34+ cells exposed to carbon-ion beams or X-rays at indicated doses were seeded in serum-free liquid cultures. The percentage of each cell type among total MNCs was calculated using the compensated total MNCs. Values are means±S.E. (%) of more than four independent experiments. Each experiment was performed as an independent experiment.aP = 1.73×10−2, bP = 1.46×10−2, cP = 4.72×10−3, dP = 4.37×10−2, eP = 4.99×10−2, fP = 1.72×10−2, gP = 4.11×10−2, hP = 1.91×10−4, iP = 4.68×10−2, jP = 4.36×10−2, kP = 4.16×10−2 vs. non-irradiated controls.