[[stock_photo]]: Cg
[[stock_photo]] / [[stock_vector_2]]: Cg / The Cardiac Cycle. The sequence of heart excitation is associated with the deviation of ECG waves by tracing. Diagram of the phases of cardiac cycle
[[stock_photo]] / [[stock_vector_1]]

#829623 Ecg [[by_user]] lotan [[stock_photo]] lotan

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