#ballistocardiograph__cardiograph  a medical instrument that measures the mechanical force of cardiac contractions and the amount of blood passing through the heart during a specified period by measuring the recoil of the body as blood is pumped from the ventricles
  supertype:  #medical_instrument__medicalinstrument  instrument used in the practice of medicine
  part of:  #cardiac_monitor__cardiacmonitor__heart_monitor__heartmonitor  a piece of electronic equipment for continual observation of the function of the heart

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