| UO | under observation; undetermined origin; urethral orifice; urinary output |
|---|---|
| IC | icteric, icterus; immune complex; immunoconjugate; immunocytochemistry; immunocytotoxicity; impedanc... |
| IM | idiopathic myelofibrosis; immunosuppressive method; implementation monitoring; Index Medicus; indome... |
| UD | ulcerative dermatosis; ulnar deviation; undetermined; underdeveloped; unit dose; urethral dilatation... |
| IUM | internal urethral meatus; intrauterine [fetus] malnourished; intrauterine membrane |