1. Miller Scientific, Johnson City, Tennessee
2. Department of Radiation Oncology, Harvard Medical School, Massachusetts General Hospital, Boston
3. Health Economics and Market Access, Boston Scientific, Marlborough, Massachusetts
4. Oncology Department, University College London Hospital, London, United Kingdom
5. Health Economics and Market Access, Boston Scientific AG, Ecublens, Switzerland
6. Department of Radiation Oncology, MediClin Robert Janker Klinik, Bonn, Germany