| MRA | magnetic resonance angiography; main renal artery; marrow repopulation activity; medical record anal... |
|---|---|
| ISI | International Sensitivity Index of reagent/instrument combination |
| AST | allergy serum transfer; angiotensin sensitivity test; anterior spinothalamic tract; antistreptolysin... |
| CLCS | colchicine sensitivity |
| C&S | calvarium and scalp; conjunctiva and sclera; culture and sensitivity |