| IW | inner wall; inpatient ward |
|---|---|
| IWB | indeterminate [HIV-1] Western blot; index of well being |
| IWGMT | International Working Group on Mycobacterial Taxonomy |
| IWI | inferior wall infarction; interwave interval |
| IWL | insensible water loss |
| IWMI | inferior wall myocardial infarct |
| IWRP | Individualized Written Rehabilitation Program |
| IWS | Index of Work Satisfaction |