1. Medical Oncology Department, Paseo de San Vicente 58, Salamanca University Hospital, Salamanca 37007, Spain. oncologiamnavarro@yahoo.es
2. Medical Oncology Department, Paseo de San Vicente 58, Salamanca University Hospital, Salamanca 37007, Spain.
3. Neurology Department, Paseo de San Vicente 58, Salamanca University Hospital, Salamanca 37007, Spain
4. Palliative Care Unit, Oncology Department, Paseo de San Vicente 58, Salamanca University Hospital, Salamanca 37007, Spain