Affiliation: | aDepartment of Medical Oncology, Cumhuriyet University Faculty of Medicine, Sivas, Ankara, Turkey;bDepartment of Preventive Oncology, Hacettepe University Institute of Oncology, Ankara, Turkey;cDepartment of Public Health, Hacettepe University Faculty of Medicine, Ankara, Turkey;dResearch Project Office, Bogazici University, Istanbul, Ankara, Turkey;eDepartment of Medical Oncology, Hacettepe University Institute of Oncology, Ankara, Turkey |