| GAO | general accounting office |
|---|---|
| NO | narcotics officer; nitric or nitrous oxide; none obtained; nonobese; nurse's office |
| NOVS | National Office of Vital Statistics |
| OAP | Office of Adolescent Pregnancy; old age pension, old age pensioner; ophthalmic artery pressure; oste... |
| OAPP | Office of Adolescent Pregnancy Programs |