1. Department of Nursing, Faculty of Nursing, Physioterapy and Podology, University Complutense of Madrid, Spain; Critical Care Department, San Carlos University Hospital, Madrid, Spain; Ethics Commission College of Nursing of Madrid, Madrid, Spain
2. Ethics Commission College of Nursing of Madrid, Madrid, Spain; Oncology Department, Alcorcón University Hospital, Madrid, Spain
3. Ethics Commission College of Nursing of Madrid, Madrid, Spain
4. Department of Nursing, Faculty of Nursing, Physioterapy and Podology, UCM
5. Department of Nursing, Faculty of Nursing, Physioterapy and Podology, Univerity Complutense of Madrid, Spain; Ethics Commission College of Nursing of Madrid, Spain