| AV node | atrial ventricular node |
| HEK | human embryonic kidney |
| iPS cells | induced pluripotent stem cells |
| iPS-CM | induced pluripotent stem cell-derived cardiomyocytes |
| LQT syndrome | long QT syndrome |
| P2R | phase 2 reentry |
| INa | sodium inward current |
| tsA201 cells | immortalized HEK293 cells |