AARP http://www.aarp.org/
Acute Long-Term Hospital Association http://www.altha.org
Alzheimer's Association http://www.alz.org/
Centers for Disease Control and Prevention http://www.cdc.gov/
Centers for Medicare and Medicaid Services http://www.cms.hhs.gov
Eldercare http://www.eldercare.gov/Eldercare/Public/Home.asp
National Area Agencies on Aging http://www.n4a.org/
National Association of Long-Term Hospitals http://www.nalth.org/
National Cancer Institute http://www.cancer.gov/
National Council on the Aging http://www.ncoa.org/index.cfm?bType=ie4
National Institute on Aging http://www.nia.nih.gov/
National Institutes of Health http://www.nih.gov/
American Academy of Hospice and Palliative Care Medicine http://www.aahpm.org/
American Association for Geriatric Psychiatry http://www.aagpgpa.org/
American Association for Respiratory Care http://www.aarc.org
American Board of Hospice and Palliative Care Medicine http://www.abhpm.org/
American Board for Internal Medicine http://www.abim.org/cert/policies_aqccm.shtm
American Board of Orthopaedic Surgery https://www.abos.org/default.aspx
American Board of Physical Medicine & Rehabilitation http://www.abpmr.org/
American Board of Podiatric Surgery http://www.abps.org/
American Board of Psychiatry and Neurology http://www.abpn.com/
American Board of Surgery http://home.absurgery.org/default.jsp?index
American College of Chest Physicians http://www.chestnet.org/index.asp
American Geriatrics Society http://www.americangeriatrics.org/
American Medical Association http://www.ama-assn.org
American Society on Aging http://www.asaging.org/index.cfm
Gerontological Society of America http://www.geron.org/
National Board for Respiratory Care http://www.nbrc.org
National Gerontological Nursing Association http://www.ngna.org/all.asp?l=home&w=1024
Society of Critical Care Medicine http://www.sccm.org/SCCM/About+SCCM
Wound, Ostomy & Continence Nurses Society http://www.wocn.org/