Mackintosh, A F Low voltage electrical activity preceding right atrial depolarisation in man. [electronic resource] - British heart journal Aug 1979 - 117-23 p. digital Publication Type: Journal Article ISSN: 0007-0769 Standard No.: 10.1136/hrt.42.2.117 doi Subjects--Topical Terms: Arrhythmia, Sinus--diagnosisCardiac CatheterizationElectrocardiography--instrumentationHeart Atria--physiopathologyHumansSinoatrial Node--physiopathology