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Figure 5 Average peripheral arterial tonometry response to reactive hyperemia (RH-PAT index) before initiation and one month after completion of enhanced external counterpulsation (EECP) therapy in patients with or without improvement in functional status. (A) Canadian Cardiovascular Society (CCS) class; (B) Duke Activity Status Index (DASI) score. *p < 0.05 vs. day 1. Open bars = day 1; solid bars = 1-month follow-up.