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Walk the Even Hospital Database by book and chapter — the raw source passages that ground Ask, DDx, and the rest.

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contentuptodate· Content· item f2_39_2673

©2013 UpToDate ® Print Email Ectopic atrial rhythm Rhythm strip in lead II showing ectopic atrial rhythm with inverted P waves which represent a low atrial focus with retrograde activation of the atrium. Courtesy of Ary L Goldberger, MD.