| TyRIA | thyroid radioisotope assay |
|---|---|
| UMA | ulcerative mutilating acropathy; upright membrane assay; urinary muramidase activity |
| WB | waist belt; washable base; washed bladder; water bottle; Wechsler-Bellevue [Scale]; weight-bearing; ... |
| ANA | Anti-Nuclear Antibody |
| Anti-ENA | Anti-Extractable Nuclear Antigens |