title: Comments on 'Cellular response to modulated radiation fields'.
abstract: The authors of a recent paper (Claridge Mackonis et al 2007 Phys. Med. Biol. 52 5469-82) measured cell survival in spatially modulated radiation fields. They claim to have identified two new types of radiation-induced bystander effect. We conclude that their claims are not supported by their data.
authors.forename: C K
authors.initials: CK
authors.lastname: Ross
authors.forename: N V
authors.initials: NV
authors.lastname: Klassen
mesh_terms: D024201:Bystander Effect / Q000502:physiology* / Q000528:radiation effects; D002470:Cell Survival / Q000502:physiology* / Q000528:radiation effects; D002478:Cells, Cultured; D004307:Dose-Response Relationship, Radiation