| NA | Avogadro constant or number; nalidixic acid; Narcotics Anonymous; network administrator; neuraminida... |
|---|---|
| AHT | aggregation half time; antihyaluronidase titer; augmented histamine test; autogenous hamster tumor |
| BH | base hospital; benzalkonium and heparin; bill of health; birth history; Bishop-Harman [instruments];... |
| COLD | A cold agglutinin titer |
| DAT | delayed-action tablet; dementia Alzheimer's type; dental aptitude test; diacetylthiamine; diet as to... |