| NCE | negative contrast echocardiography; new chemical entity; nonconvulsive epilepsy |
|---|---|
| NEEP | negative end-expiratory pressure |
| neg | negative |
| NEP | negative expiratory pressure; nephrology; neutral endopeptidase; no evidence of pathology |
| NIF | negative inspiratory force; neutrophil immobilizing factor; nonintestinal fibroblast |