ZEH, E [The floating electrode, a simple apparatus for taking precordial leads]. [electronic resource] - Deutsche medizinische Wochenschrift (1946) Apr 1950 - 513 p. digital Publication Type: Journal Article ISSN: 0012-0472 Standard No.: 10.1055/s-0028-1117919 doi Subjects--Topical Terms: ElectrocardiographyElectrodesHumans