title: Methylation of DNA in HeLa cells after ultraviolet irradiation.
mesh_terms: D004247:DNA / Q000378:metabolism*; D004307:Dose-Response Relationship, Radiation; D006367:HeLa Cells / Q000378:metabolism / Q000528:radiation effects*; D008745:Methylation; D014466:Ultraviolet Rays
chemical_list: D004247:DNA