Gesellschaft für Strahlen- und Umweltforschung

Quality assurance in diagnostic radiology : a guide prepared following a workshop held in Neuherberg, Federal Republic of Germany, 20-24 October 1980, and organized jointly by Institute of Radiation Hygiene, Federal Health Office, Neuherberg, Federal Republic of Germany [and] Society for Radiation and Environmental Research, Neuherberg, Federal Republic of Germany and World Health Organization, Geneva, Switzerland.