Figure 5From: Effectiveness of acupuncture for angina pectoris: a systematic review of randomized controlled trialsOverall and subgroup meta-analysis of trials comparing the combination of acupuncture plus other interventions versus other interventions alone in terms of the number of patients showing ineffectiveness of angina relief. Group 1: unstable angina pectoris; Group 2: coronary heart disease angina; Group3: stable angina pectoris.Back to article page