1. Radiation Oncology Department, King Hussein Cancer Center, Amman, Jordan
2. Al Afia Radiotherapy and Nuclear Medicine Center, Amman, Jordan
3. Radiation Oncology Department, Queen Alia Hospital, Royal Medical Services, Amman, Jordan
4. Radiotherapy Department, Al Basheer Hospital, Ministry of Health, Amman, Jordan
5. Medical Physics Section, Radiation Oncology Department, King Hussein Cancer Center, Amman, Jordan