Electrocardiogram (ECG), illustration. After ventricular activation produces a QRS wave it enters the effective refractory period (ERP) and will not be activated again immediately. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / CHONGQING TUMI TECHNOLOGY LTD |
Taille de l’image : | 3900 px × 3921 px |
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