| ION | ischemic optic neuropathy |
|---|---|
| IS | ileal segment; immediate sensitivity; immune serum; immunosuppression; impingement syndrome; incenti... |
| ITCVD | ischemic thrombotic cerebrovascular disease |
| NCI | National Cancer Institute; noncriterion ischemic [animal]; nuclear contour index; nursing care integ... |
| PION | posterior ischemic optic neuropathy |