| NHDS | National Health Data System; National Hospital Discharge Survey |
|---|---|
| NHF | National Health Federation; National Hemophilia Foundation; nonimmune hydrops fetalis |
| NHS | Nance-Horan syndrome; National Health Service; National Hospice Study; normal horse serum; normal hu... |
| NII | National Information Infrastructure; National Insurance Institute |
| NMF | N-methylformamide; National Medical Fellowship; National Migraine Foundation; nonmigrating fraction |