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Woman with alternating QRS in the emergency department: what is happening?
- Correspondence to Dr Miguel Angel Lopez-Lizarraga, Cardiology, Instituto Nacional de Cardiologia Ignacio Chavez, Mexico City, Mexico; drlopezlizarraga{at}gmail.com
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Woman with alternating QRS in the emergency department: what is happening?
Publication history
- First published December 22, 2022.
Online issue publication
May 31, 2023
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© Author(s) (or their employer(s)) 2023. No commercial re-use. See rights and permissions. Published by BMJ.