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Johannesen, Lars, Jose Vicente, Loriano Galeotti, Zak Loring, Jeffry A. Florian, Christine E. Garnett, Norman Stockbridge, and David G. Strauss. “Normal Limits of Variability of Spatial QRS-T Angle and Ventricular Gradient: Analysis of 20 Thorough-QT Studies.” In CIRCULATION, Vol. 126. LIPPINCOTT WILLIAMS & WILKINS, 2012.

Johannesen L, Vicente J, Galeotti L, Loring Z, Florian JA, Garnett CE, et al. Normal Limits of Variability of Spatial QRS-T Angle and Ventricular Gradient: Analysis of 20 Thorough-QT Studies. In: CIRCULATION. LIPPINCOTT WILLIAMS & WILKINS; 2012.

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Johannesen L, Vicente J, Galeotti L, Loring Z, Florian JA, Garnett CE, Stockbridge N, Strauss DG. Normal Limits of Variability of Spatial QRS-T Angle and Ventricular Gradient: Analysis of 20 Thorough-QT Studies. CIRCULATION. LIPPINCOTT WILLIAMS & WILKINS; 2012.