1. Department of Psychiatry; Medical School; University of Ioannina; Greece
2. Department of Medical Oncology; Medical School; University of Ioannina; Greece
3. Department of Medical Oncology; Papageorgiou Hospital; Aristotle University of Thessaloniki; School of Medicine; Thessaloniki Greece
4. Department of Psychiatry; University of Patras; Medical School; Rion Patras Greece
5. Department of Clinical Medicine, Faculty of Medicine; Federal University of Ceará; Fortaleza CE Brazil