| ER | efficiency ratio; epigastric region; ejection rate; electroresection; emergency room; endoplasmic re... |
|---|---|
| RAR | rapidly adapting receptor; rat insulin receptor; retinoic acid receptor; right arm reclining; right ... |
| ESA | Electrolysis Society of America; endocardial surface area; epidermal surface antigen; esterase; este... |
| SSD | shaded surface display; single saturating dose; Social Security disability; source-skin distance; so... |
| RCC | radiological control center; rape crisis center; ratio of cost to charges; receptor-chemoeffector co... |