| IPN | infantile polyarteritis nodosa; infectious pancreatic necrosis [of trout]; intern progress note; int... |
|---|---|
| IRD | infantile Refsum syndrome; isorhythmic dissociation |
| IS | ileal segment; immediate sensitivity; immune serum; immunosuppression; impingement syndrome; incenti... |
| LIAFI | late infantile amaurotic familial idiocy |
| LIMM | lethal infantile mitochondrial myopathy |