| MPD | main pancreatic duct; maximum permissible dose; mean population doubling; membrane potential differe... |
|---|---|
| NAD | neutrophil actin dysfunction; new antigenic determinant; nicotinamide adenine dinucleotide; nicotini... |
| NBD | neurogenic bladder dysfunction; no brain damage |
| NEMD | nonspecific esophageal motor dysfunction |
| NSD | Nairobi sheep disease; neonatal staphylococcal disease; neurosecretory dysfunction; night sleep depr... |