| B2 | riboflavin |
|---|---|
| RBP | retinol-binding protein; riboflavin-binding protein |
| RCP | red cell protoporphyrin; retrocorneal pigmentation; riboflavin carrier protein; Royal College of Phy... |
| RF | radial fiber; radio frequency; receptive field; regurgitant fraction; Reitland-Franklin [unit]; rela... |
| Rib | riboflavin; ribose |