| NS | natural science; Neosporin; nephrosclerosis; nephrotic syndrome; nervous system; neurological surger... |
|---|---|
| NTA | natural thymocytotoxic autoantibody; nitrilotriacetic acid; Nurse Training Act |
| XNA | Xenoreactive natural antibodies |
|---|---|
| nHuTNF-alpha | natural human tumor necrosis factor alpha |
| NR | natural resistance |