| IADR | International Association for Dental Research |
|---|---|
| IAET | International Association for Enterostomal Therapy |
| IAGP | International Association of Geographic Pathology |
| IAGUS | International Association of Genito-Urinary Surgeons |
| IAHS | infection-associated hemophagocytic syndrome; International Association of Hospital Security |
| IARC | International Agency for Research in Cancer |
|---|---|
| IAEA | International Atomic Energy Agency |
| IBMTR | International Bone Marrow Transplant Registry |
| ICDDR, B | International Centre for Diarrhoeal Disease Research, Bangladesh |
| ICNP | International Classification for Nursing Practice |