| ECG | Electro-Cardio-Graphy(-Gram); 심전도 = EKG 1. Conducting System Structu... |
|---|---|
| FF | degree of fineness of abrasive particles; fat-free; father factor; fecal frequency; fertility factor... |
| NYHA | New York Heart Association Heart Disease에 대한 Functional Classification &nbs... |
| ft. | foot, feet |
| 1 inch | = 1/12 feet, 2.54 cm; |