| ACA | abnormal coronary artery; acrodermatitis chronica atrophicans; acute cerebellar ataxia; adenocarcino... |
|---|---|
| AMA | against medical advice; alkaline membrane assay; American Management Association; American Medical A... |
| NA | Avogadro constant or number; nalidixic acid; Narcotics Anonymous; network administrator; neuraminida... |
| COWS | Cold Opposite, Warm Same |
| COWS | cold to opposite and warm to same side |