SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Paediatric heart monitoring. Baby undergoing an electrocardiography (ECG) examination. The electrodes attached to the chest are used to measure the electrical activity of his heart. An ECG examination can help diagnose a range of heart complaints, such as arrhythmia, coronary artery disease and cardiac asthma. Photographed in Kaliningrad, Russia.
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