Tianjin People's Hospital, Tianjin, China
Sakarya University Training and Research Hospital, Sakarya, Turkey
Atatürk University, Erzurum, Turkey
Fudan University Shanghai Cancer Centre, Shanghai, Shanghai, China
Cairo University Hospitals, Cairo, Giza, Egypt
Oncology Institute of Southern Switzerland, Bellinzona, Switzerland
Belfast Health and Social Care Trust, Belfast, United Kingdom
Cambridge University Hospitals NHS Foundation Trust, Cambridge, United Kingdom
University Medical Center Hamburg-Eppendorf, Hamburg, Germany
PUCPR, Curitiba, PR, Brazil
Gazi University, Ankara, Çankaya, Turkey