| ECG | Electro-Cardio-Graphy(-Gram); 심전도 = EKG 1. Conducting System Structu... |
|---|---|
| RSR | regular sinus rhythm; relative survival rate; right superior rectus [muscle] |
| CSS | Cancer Surveillance System; carotid sinus stimulation; carotid sinus syndrome; cavernous sinus syndr... |
| reg | rhy regular rhythm |
| RRR | regular rhythm and rate; renin release rate (or ratio) |