| RNAA | radiochemical neutron activation analysis |
|---|---|
| RVA | re-entrant ventricular arrhythmia; right ventricle activation; right vertebral artery |
| SCH | student contact hour; succinylcholine |
| SCL | scleroderma; serum copper level; sinus cycle length; soft contact lens; stromal cell line; subcostal... |
| TAT | tetanus antitoxin; thematic apperception test; thematic aptitude test; thrombin-antithrombin complex... |