Geselowitz, D. B., Arzbaecher, R. C., Barr, R. C., Briller, S. A., Damato, A. N., Flowers, N., … Smith, R. E. (1980). Electrical safety standards for electrocardiographic apparatus. Circulation, 61(4), 669–670. https://doi.org/10.1161/01.cir.61.4.669

Geselowitz, D. B., R. C. Arzbaecher, R. C. Barr, S. A. Briller, A. N. Damato, N. Flowers, K. Millar, G. C. Oliver, R. Plonsey, and R. E. Smith. “Electrical safety standards for electrocardiographic apparatus.” Circulation 61, no. 4 (April 1980): 669–70. https://doi.org/10.1161/01.cir.61.4.669.

Geselowitz DB, Arzbaecher RC, Barr RC, Briller SA, Damato AN, Flowers N, et al. Electrical safety standards for electrocardiographic apparatus. Circulation. 1980 Apr;61(4):669–70.

Geselowitz, D. B., et al. “Electrical safety standards for electrocardiographic apparatus.” Circulation, vol. 61, no. 4, Apr. 1980, pp. 669–70. Epmc, doi:10.1161/01.cir.61.4.669.

Geselowitz DB, Arzbaecher RC, Barr RC, Briller SA, Damato AN, Flowers N, Millar K, Oliver GC, Plonsey R, Smith RE. Electrical safety standards for electrocardiographic apparatus. Circulation. 1980 Apr;61(4):669–670.