| RAS | 1) Reticular Activating(Activation) System 2) Renal Artery Stenosis |
|---|---|
| RAS | rapid atrial stimulation; recurrent aphthous stomatitis; reflex activating stimulus; reliability, availability, serviceability; renal artery stenosis; renin-angiotensin system; residency application service; reticular activating system; rheumatoid arthritis serum |
| ras | retrovirus-associated DNA sequence |
| RASS | rheumatoid arthritis and Sjogren syndrome |
| RAST | Radio-Allergo-Sorbent Test ; Specific IgE Test |
| RAST | radioallergosorbent test |