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Journal of Electrocardiology|December 12, 2018
Spiked helmet pattern ST elevation in subarachnoid hemorrhageRobert K Laundon, Laszlo Littmann
Journal of Electrocardiology|April 20, 2010
The diagnostic use of respiratory artifactLaszlo Littmann
Journal of Electrocardiology|August 24, 2025
Volcanic mountain sign: A variant of the spiked helmet signLaszlo Littmann
The American Journal of Emergency Medicine|June 5, 2024
An unusual cause of giant T wavesLaszlo Littmann
Journal of Electrocardiology|December 29, 2009
Fact or artifact? The electrocardiographic diagnosis of orthostatic tremorLaszlo Littmann
Journal of Electrocardiology|December 5, 2020
Electrocardiographic artifactLaszlo Littmann
Journal of Electrocardiology|April 6, 2024
What are those intermittent "S" waves?Laszlo Littmann
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