| DRF | Daily Rating Form; daily replacement factor; Deafness Research Foundation; dose reduction factor |
|---|---|
| DRP | digoxin reduction product; dorsal root potential; dystrophin-related protein |
| MBRT | methylene blue reduction time |
| NR | do not repeat [Lat. non repetatur]; nerve root; neural retina; neutral red; noise reduction; nonreac... |
| OR | a logical binary relation that is true if any argument is true, and false otherwise; [o]estrogen rec... |