| AFAR | American Foundation for Aging Research |
|---|---|
| AOA | American Osteopathic Association; Administration on Aging; Alpha Omega Alpha Honor Society; American... |
| NCA | National Certification Agency; National Council on Aging; National Council on Alcoholism; neurocircu... |
| NIA | National Institute on Aging; nephelometric inhibition assay; niacin; no information available; Nutri... |
| OSA | obstructive sleep apnea; Office of Services to the Aging; Optical Society of America; ovarian sectio... |