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Lewis Lead

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Lewis lead.  Enhancing view of P waves.

The Lewis Lead is used to enhance our view of atrial activity, emphasizing P waves and flutter waves.  Illustration by Dawn Altman.  Free for use in educational setting.  Contact Dawn for commercial use:  [email protected]

Ventricular Systole

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Ventricular systole

This is an original illustration by Dawn Altman. It may be used free of charge for enhancement of classroom teaching materials. For commercial publication, please contact the artist at [email protected]

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