| NMFI | National Master Facility Inventory |
|---|---|
| NPI | Narcissistic Personality Inventory; neuropsychiatric institution; no present illness; nucleoplasmic ... |
| NPUI | nursing process utilization inventory |
| OI | obturator internus; occasional insomnia; opportunistic infection; opsonic index; orgasmic impairment... |
| OPI | oculoparalytic illusion; Omnibus Personality Inventory |