| 1 | It could be that the injected cells form new muscle themselves. | |
| 2 | They hope their work could also lead to a new way to make artificial liver or cardiac tissue. | |
| 3 | The man continues, "Five minutes is the outside limit even the strongest cardiac muscles can continue to function. | |
| 4 | Electrical impulses in the myocardium, the heart's muscular wall, keep your heart beating. | |
| 5 | It involves no viruses and is a foolproof method to create cardiac cells that beat, they say. |