| RES | radionuclide esophageal scintigraphy; reticuloendothelial system |
|---|---|
| res | research; resection; resident; residue; resistance |
| AAA | abdominal aortic aneurysm/aneurysmectomy; acne-associated arthritis; acquired aplastic anemia; acute... |
| AAHA | American Academy of Hospital Attorneys; American Association of Homes for the Aging |
| ABS | abdominal surgery; acute brain syndrome; Adaptive Behavior Scale; admitting blood sugar; adult bovin... |