| HN | head and neck; head nurse; hemagglutinin neuraminidase; hematemesis neonatorum; hemorrhage of newbor... |
|---|---|
| COLD | Chronic Obstructive Lung Disease |
| COWS | Cold Opposite, Warm Same |
| PCH | Paroxysmal Cold Hemoglobinuria |
| ACU | acquired cold urticaria; acute care unit; agar colony-forming unit; ambulatory care unit |