| ICR | [distance between] iliac crests; Institute for Cancer Research; Institute for Cancer Research [mouse... |
|---|---|
| IRH | Institute for Research in Hypnosis; Institute of Religion and Health; intrarenal hemorrhage |
| ISR | information storage and retrieval; Institute for Sex Research; Institute of Surgical Research; insul... |
| NIA | National Institute on Aging; nephelometric inhibition assay; niacin; no information available; Nutri... |
| ARA | Academy of Rehabilitative Audiometry; acetylene reduction activity; American Rheumatism Association;... |
| NIHSS | National Institute of Health Stroke Scale |
|---|---|
| NIMH | National Institute of Mental Health |
| NINDS | National Institute of Neurological Disorders and Stroke |
| NIOSH | National Institute of Occupational Safety and Health |
| NIST | National Institute of Standards and Technology |