Respuesta :

boazgrace000

Answer:

the answer is:

Explanation:

is absence of esophageal peristalsis and impaired relaxation of the lower esophageal sphincter

Electrical activation, mechanical activation, fibre shortening, epicardial deformation, video-pacing, stroke volume. ... M activation was defined as the onset of epicardial fibre shortening, as measured with a recently developed video technique.

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