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- [5] SIMILARITIES BETWEEN HUMAN ATAXIA FIBROBLASTS AND MURINE SCID CELLS - HIGH-SENSITIVITY TO GAMMA-RAYS AND HIGH-FREQUENCY OF METHOTREXATE-INDUCED DHFR GENE AMPLIFICATION, BUT NORMAL RADIOSENSITIVITY TO DENSELY IONIZING ALPHA-PARTICLES [J]. RADIATION AND ENVIRONMENTAL BIOPHYSICS, 1994, 33 (03) : 201 - 210