Tests Beginning with U 2 entries
| UPGDW | Uroporphyrinogen Decarboxylase, Washed Erythrocytes Mayo Clinic Laboratories in Rochester |
| UPGD | Uroporphyrinogen Decarboxylase, Whole Blood Mayo Clinic Laboratories in Rochester |
| UPGDW | Uroporphyrinogen Decarboxylase, Washed Erythrocytes Mayo Clinic Laboratories in Rochester |
| UPGD | Uroporphyrinogen Decarboxylase, Whole Blood Mayo Clinic Laboratories in Rochester |