| NINCDS/ADRDA | National Institute of Neurological and Communicative Diseases and Stroke/Alzheimer's Disease and Rel... |
|---|---|
| NINDB | National Institute of Neurological Diseases and Blindness |
| NIA | National Institute on Aging; nephelometric inhibition assay; niacin; no information available; Nutri... |
| IRRD | Institute for Research in Rheumatic Diseases |
| USAMRIID | United States Army Medical Research Institute for Infectious Diseases |