The Free Online Palliative Care Dictionary
World Health Organization. Definitions. Internet. Accessed on August 7, 2009.
WHO. Programmes and projects. Health Impact Assessment. Glossary of terms. Internet. Accessed on April 29, 2010.
Canadian Hospice Palliative Care Association. A Model to Guide Hospice Palliative Care. Appendices: Lexicon of Commonly Used Terms. Accessed on June 21, 2009.