| PPM | permanent pacemaker; phosphopentomutase; physician practice management; pigmented pupillary membrane... |
|---|---|
| QMT | quantitative muscle test |
| RAM | random-access memory; rapid alternating movements; rectus abdominis muscle; rectus abdominis myocuta... |
| rect | rectal; rectification, rectified; rectum; rectus [muscle] |
| RIR | relative incidence rates; right interior rectus [muscle] |