| IAGP | International Association of Geographic Pathology |
|---|---|
| IAGUS | International Association of Genito-Urinary Surgeons |
| IAHS | infection-associated hemophagocytic syndrome; International Association of Hospital Security |
| IAMM | International Association of Medical Museums |
| IAMS | International Association of Microbiological Societies |
| MIU | Million International Units |
|---|---|
| OIE | Office International des Epizooties |
| SLICC/ACR | Systemic Lupus International Collaborating Clinics/American College of Rheumatology |
| UICC | Union International Contre le Cancer |