American Journal of Cardiology
Volume 101, Issue 12 , Pages 1801-1804, 15 June 2008

The Ladder Diagram (A 100+ Year History)

Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois.

Received 19 January 2008; received in revised form 10 February 2008; accepted 10 February 2008. published online 23 April 2008.

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PII: S0002-9149(08)00386-X

doi:10.1016/j.amjcard.2008.02.085

American Journal of Cardiology
Volume 101, Issue 12 , Pages 1801-1804, 15 June 2008

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