- Hospice Foundation of America www.hospicefoundation.org
- National Association for Home Care and Hospicewww.nahc.org
- American Federation for Aging Researchwww.infoaging.org
- National Institutes of Health health.nih.gov
- American Society for Pain Management Nursing www.aspmn.org
- U.S. Department of Health & Human Serviceswww.hhs.gov
