1. Palliative Medicine Unit, Kasr Al-Ainy Center of Clinical Oncology & Nuclear Medicine; Kasr Al-Ainy School of Medicine, Cairo University; Cairo Egypt
2. Port Said General Hospital; Port Said Egypt
3. Clinical Oncology Department, Kasr Al-Ainy Center of Clinical Oncology & Nuclear Medicine; Kasr Al-Ainy School of Medicine, Cairo University; Cairo Egypt