| URD | unspecified respiratory disease; upper respiratory disease |
|---|---|
| NBS | N-bromosuccinimide; National Bureau of Standards; neuroblastoma supressor; nevoid basal cell carcino... |
| NL | neural lobe; neutral lipid; nodular lymphoma; normal; normal libido, normal limits |
| NS | natural science; Neosporin; nephrosclerosis; nephrotic syndrome; nervous system; neurological surger... |
| GRANDDAD | growth delay-aged facies-normal development-deficiency of subcutaneous fat [syndrome] |