| CRM | Certified Reference Materials; counting rate meter; cross-reacting material; crown-rump measurement |
|---|---|
| PRM | phosphoribomutase; photoreceptor membrane; premature rupture of membranes; Primary Reference Materia... |
| RM | radical mastectomy; random migration; radon monitor; range of movement; red marrow; reference materi... |
| SRM | spontaneous rupture of membranes; Standard Reference Material; superior rectus muscle |
| ARP | absolute refractory period; American Registry of Pathologists; anticipated recovery path; apolipopro... |