Cite
MLA Citation
L. Hahn. “THE P–R SEGMENT IN HYPERTENSIVE HEART DISEASE.” Heart, vol. 2, no. 2, 1940, pp. 101–106. http://access.bl.uk/ark:/81055/vdc_100144238243.0x00003a
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L. Hahn. “THE P–R SEGMENT IN HYPERTENSIVE HEART DISEASE.” Heart, vol. 2, no. 2, 1940, pp. 101–106. http://access.bl.uk/ark:/81055/vdc_100144238243.0x00003a