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Comparison of the amplitude of the P-wave from intracardiac electrocardiogram obtained by means of a central venous catheter filled with saline solution to that obtained via esophageal electrocardiogram.
Benzadón MN, Ortega DF, Thierer JM, Torcivia RA, Aldunate L, de Lima AE, Navia D, Dorsa A, Rossi A, Trivi M. Benzadón MN, et al. Am J Cardiol. 2006 Oct 1;98(7):978-81. doi: 10.1016/j.amjcard.2006.04.042. Epub 2006 Aug 18. Am J Cardiol. 2006. PMID: 16996887