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I think the article's tone is neutral and is a good start. Maybe consider expanding the "Clinical Significance" section, and finding sources for all the bullet points (except 1 that is already cited). Also, do you know the significance of the chart at the bottom? Is that information helpful for anything aside from diagnostic value? [I changed one of the links that I saw was incorrectly linked to heart disease instead of specifically to coronary ischemia, which I found as I was reading through the article.] --Rorazi (talk) 13:33, 3 March 2017 (UTC)