| BUS | Bartholin, urethral, and Skene glands; busulfan |
|---|---|
| IB | idiopathic blepharospasm; immune body; inclusion body; index of body build; infectious bronchitis; I... |
| UN | United Nations; 국제연합 |
| UNESCO | United Nations Educational, Scientific & Cultural Organization; 국제연합교육과학문화기구 |
| UNICEF | United Nations International Children's Emergency Fund; 국제연합아동구호기금 |