title: [Establishment of the Japanese Radiation Oncology Study Group].
abstract: The Japanese Radiation Oncology Study Group (GROSG) which conducts multi-center trials, was organized in July, 1998 in order to establish standards' for radiation therapy. These standards must be based on the results of high quality trials, and the quality of radiotherapy must be assured in each hospital.
authors.affiliation: Dept. of Radiology, Tokyo Women's Medical University.
authors.forename: T
authors.initials: T
authors.lastname: Ohkawa
authors.forename: K
authors.initials: K
authors.lastname: Morita
mesh_terms: D002986:Clinical Trials as Topic / Q000379:methods / Q000639:trends; D006801:Humans; D007564:Japan; D015337:Multicenter Studies as Topic; D009369:Neoplasms / Q000532:radiotherapy*; D018787:Radiation Oncology / Q000458:organization & administration* / Q000592:standards*