A Systematic Review of Newer Pharmacotherapies for Depression in Adults: Evidence Report Summary: Clinical Guideline, Part
2

Figure 4. indicates number of participants. The diamonds represent a summary estimate, derived from the individual studies
listed above the diamonds. The center of each diamond is the point estimate, and the tails represent the 95% CIs.
Meta-analysis of hypericum (St. John's wort) for depressive disorders in adults.N
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Ann Intern Med
May 2, 2000
vol. 132
no. 9
743-756