1. From the Department of Radiation Physics, Malmo University Hospital, Malmo (S. Mattsson), Departments of Medical Radiation Physics (A. Brahme) and Oncology and Pathology (B. Glimelius), Karolinska Institutet, Stockholm, Department of Oncology, Radiology and Clinical Immunology, Uppsala University, Uppsala (J. Carlsson, B. Stenerlow, I. Turesson, B. Glimelius), Department of Oncology, Umea University, Umea(J. Denekamp, B. Littbrand, B. Zackrisson), Departments of Radiation Physics (E. ForssellAronsson, K...