| RFT | respiratory function test; rod-and-frame test; right frontotransverse [fetal position] |
|---|---|
| RMCH | rod monochromacy or monochromatism |
| ROS | reactive oxygen species; review of systems; rod outer segment |
| ROSP | rod outer segment protein |
| ECG | Electro-Cardio-Graphy(-Gram); 심전도 = EKG 1. Conducting System Structu... |