Vaughan, A T Interaction between ionizing radiation and supercoiled DNA within human tumor cells. [electronic resource] - Cancer research Aug 1991 - 3857-61 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 0008-5472 Subjects--Topical Terms: Carcinoma, Squamous Cell--pathologyCell Nucleus--drug effectsDNA, Neoplasm--drug effectsDNA, Superhelical--drug effectsEthidium--pharmacologyFluorescenceHumansLightRadiation Tolerance--physiologyRadiation, IonizingScattering, RadiationTumor Cells, Cultured