1 Subjects: “...United States...”

2 Subjects: “...Controlled Clinical Trials as Topic...”

3 Subjects: “...Controlled Clinical Trials as Topic...”

4 “...DESIGN: Randomized clinical trials (RCTs) of secondary prevention programs in patients with CAD...”

5 “...INTRODUCTION: Although observational studies are increasingly being used to address gaps...”

6 Subjects: “...Observational Studies as Topic...”

7

8

9 “... the impact of study-level factors on the association between risk of bias and ES using subgroup analyses. Two...”

10 “... the impact of study-level factors on the association between risk of bias and ES using subgroup analyses. Two...”