| NIIS | National Institute of Infant Services |
|---|---|
| NIMH | National Institute of Mental Health |
| NIMR | National Institute for Medical Research |
| NINCDS | National Institute of Neurological and Communicative Disorders and Stroke |
| NINCDS/ADRDA | National Institute of Neurological and Communicative Diseases and Stroke/Alzheimer's Disease and Rel... |