1. Universidad de Navarra, Institute for Culture and Society-ATLANTES Global Observatory of Palliative Care, Pamplona, Navarra, Spain
2. IdISNA-Instituto de Investigación Sanitaria de Navarra. Medicina Paliativa
3. Dr. Lopes Dias High School of Health—Castelo Branco Polytechnic Institute, Castelo Branco, Portugal
4. Clínica Universidad de Navarra, Pamplona, Navarra, Spain