| HEPBsAg | hepatitis B surface antigen |
|---|---|
| ICSA | islet cell surface antibody |
| ISS | idiopathic short stature; injury severity score; International Society of Surgery; ion-scattering sp... |
| LA50 | total body surface area of burn that will kill 50% of patients (lethal area) |
| M2 | dose per square meter of body surface; marked dullness; promyelocyte |