| SI | International System of Units [Fr. le Systeme International d'Unites]; sacroiliac; saline infusion; ... |
|---|---|
| IS | ileal segment; immediate sensitivity; immune serum; immunosuppression; impingement syndrome; incenti... |
| ISP | distance between iliac spines; interspace; intraspinal; isoproterenol |
| GnRH | Gonadotropin Releasing Hormone [HP 1898, 2034] = LHRH = Go... |
| hypo. | hypodermic(ally) injection; 피하주사 |