1 International Association for Hospice and Palliative Care, Houston, TX 77007, USA; Department of Palliative Medicine, University Hospital Bonn, Bonn, Germany.
2 Worldwide Hospice Palliative Care Alliance, London, UK.
3 International Association for Hospice and Palliative Care, Houston, TX 77007, USA; NGO Committee on Ageing, Geneva, Switzerland. Electronic address: kpettus@iahpc.com.