#cardiac_rhythm__cardiacrhythm__heart_rhythm__heartrhythm  the rhythm of a beating heart
  supertype:  regular_recurrence__regularrecurrence__rhythm  recurring at regular intervals
  subtype:  atrioventricular_nodal_rhythm__nodal_rhythm__nodalrhythm  the normal cardiac rhythm when the heart is controlled by the atrioventricular node

No statement uses or specializes cardiac_rhythm; click here to add one.