1. Palliative Care Medicine Unit, Kasr Al-Aini Center of Clinical Oncology & Nuclear Medicine (NEMROCK), Kasr Al-Aini School of Medicine, Cairo University, Cairo, Egypt,
2. Palliative Care Medicine Unit, Kasr Al-Aini Center of Clinical Oncology & Nuclear Medicine (NEMROCK), Kasr Al-Aini School of Medicine, Cairo University, Cairo, Egypt