| PSR | pain sensitivity range; perspective surface rendering; portal systemic resistance; proliferative sic... |
|---|---|
| CR | calculation rate; calculus removed; calorie-restricted; cardiac rehabilitation; cardiac resuscitatio... |
| CRL | cell repository line; Certified Record Librarian; complement receptor location; complement receptor ... |
| DR | degeneration reaction; delivery room; deoxyribose; diabetic retinopathy; diagnostic radiology; digit... |
| ERA | electrical response activity; electroencephalic response audiometry; Electroshock Research Associati... |