1. Department of Medical Oncology, Psychiatry, Radiotherapy, and Surgery, University Hospital of Ioannina, Ioannina, Greece.
2. Department of Architectural Engineering, Architecture Faculty, University of Ioannina, Ioannina, Greece.
3. PACMeR, Department of Evidence Based Medicine, Athens, Greece.
4. Department of Medical Oncology, The Christie NHS Foundation Trust, Manchester, United Kingdom.
5. Department of Radiotherapy, School of Medicine, University of Crete, Heraklion, Greece.
6. Department of Radiotherapy, Scottish Sarcoma Network (SSN) UK Chair NCRIHN Epidemiology and Survivorship Subgroup, The Beatson West of Scotland Cancer Centre, Glasgow, United Kingdom.