electrocardiographic ecg monitoring device in hospital

and background blood cardiac cardiogram cardiology care center clinic closeup data database device devices display ecg ekg electrocardiogram electrocardiograph electrocardiographic electronics emergency endosurgery equipment health healthcare healthy heart heartbeat hospital indoor instrument life lithotripsy machine measure medical medicine modern monitor monitoring pacemaker patient portable pressure professional pulse rate rates room science send server sign signs surgery technology that vital waveforms web will