Rogge, J D Comparison of the incidence of cardiac arrhythmias during +Gx acceleration, treadmill exercise and tilt table testing. [electronic resource] - Aerospace medicine Jan 1969 - 1-5 p. digital Publication Type: Journal Article ISSN: 0001-9402 Subjects--Topical Terms: AccelerationAdultArrhythmias, Cardiac--epidemiologyElectrocardiographyGravitationHumansMaleMiddle AgedPhysical ExertionPosture