1. Palliative and Supportive Care Clinic, Oncology Institute of Southern Switzerland and Ente Ospedaliero Cantonale, Lugano, Switzerland;
2. Respiratory Care Department, Ospedale Regionale di Lugano, Ente Ospedaliero Cantonale, Lugano, Switzerland;
3. International Observatory on End of Life Care, Faculty of Health and Medicine, Lancaster University, Lancaster, UK