Whither electrocardiography?
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Electrocardiography↗
Biomedical subjects
J S Butterworth
Publications and source records attributed to J S Butterworth.
Papilloma of cusp of the aortic valve. Report of a patient with sudden death.
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Aortic Valve↗
The clinical diagnosis of ball variance.
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Aortic Valve↗
Incarcerated sliding esophageal hiatus hernia with Schatzki's ring simulating carcinoma of the esophagus.
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Aged↗