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. 2019 Mar 15;321(11):1069–1080. doi: 10.1001/jama.2019.1122

Figure 4. Proportion of Recommendations by Class and Level of Evidence in Current and Prior ACC/AHA and ESC Guidelines.

Figure 4.

“Heat maps” shown represent 26 current and 16 prior American College of Cardiology/American Heart Association (ACC/AHA) guidelines and 25 current and 16 prior European Society of Cardiology (ESC) guidelines. Light blue squares represent low percentages; darker blue squares, high percentages.