| TTNB | Transient Tachypnea of New Born |
|---|---|
| ANDA | Abbreviated New Drug Application |
| NAD | neutrophil actin dysfunction; new antigenic determinant; nicotinamide adenine dinucleotide; nicotini... |
| NADA | New Animal Drug Application |
| NCE | negative contrast echocardiography; new chemical entity; nonconvulsive epilepsy |