1. Yale University School of Medicine, New Haven, Connecticut, USA.
2. Hospice Ethiopia, Addis Ababa, Ethiopia.
3. Kings College London, London, United Kingdom.
4. Stanford University, Stanford, California, USA.
5. Northwestern University, Evanston, Illinois, USA.
6. Addis Ababa College of Health Sciences, Addis Ababa, Ethiopia.
7. School of Nursing, BPP University, Addis Ababa, United Kingdom.
8. Worldwide Hospice and Palliative Care Alliance, Fairfax Station, Virginia, USA.