| RR&R | regular rate and rhythm |
|---|---|
| RSA | rabbit serum albumin; regular spiking activity; relative specific activity; relative standard accura... |
| RSR | regular sinus rhythm; relative survival rate; right superior rectus [muscle] |
| APIP | additional personal injury protection |
| CPC | central posterior curve; cerebellar Purkinje cell; cerebral palsy clinic; cerebral performance categ... |