BRODY, D A The axostat. III. An improved form of the instrument, and its application to the establishment of spatial electrocardiographic indices in 102 normal subjects. [electronic resource] - American heart journal Oct 1955 - 610-24 p. digital Publication Type: Journal Article ISSN: 0002-8703 Standard No.: 10.1016/0002-8703(55)90305-7 doi Subjects--Topical Terms: Electrocardiography--instrumentationHumans