| ATB | at the time of the bomb [A-bomb in Japan]; atrial tachycardia with block |
|---|---|
| HVJ | hemagglutinating virus of Japan |
| IAM | Institute of Applied Microbiology [Japan]; Institute of Aviation Medicine; internal auditory meatus |
| MISJ | Medical Instrument Society of Japan |
| WHO | World Health Organization; 세계보건기구 |