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Cohen, Todd J., Melvin M. Scheinman, Booker T. Pullen, Nancy A. Chiesa, Michael D. Lesh, John M. Herre, Michael A. Lee, and Jerry C. Griffin. "Emergency Intracardiac Defibrillation in Patients with Refractory Ventricular Fibrillation." Journal of the American College of Cardiology 17, no. 2, Number 2 Supplement 1 (1991): A351. https://doi.org/10.1016/0735-1097(91)92368-V.

Cohen, Todd J., et al. "Emergency Intracardiac Defibrillation in Patients with Refractory Ventricular Fibrillation." Journal of the American College of Cardiology, vol. 17, no. 2, Number 2 Supplement 1, 1991, p. A351, https://doi.org/10.1016/0735-1097(91)92368-V.