| BOW | bag of waters |
|---|---|
| RBOW | rupture of the bag of waters |
| DRR | digitally reconstructed radiograph; Division of Research Resources [NIH]; dorsal root reflex |
| FR | failure rate; film-screen radiograph; fasciculus retroflexus; febrile reaction; feedback regulation;... |
| PAR | participating provider; passive avoidance reaction; perennial allergic rhinitis; photosynthetically ... |