[Retracted] Analysis of the Need for Postoperative Drainage Application for Hip Arthroplasty: A Systematic Review and Meta-Analysis

Figure 3

Forest plot of comparison. (a) Hb levels in the drainage and non-drainage groups. (b) Hct levels in the drainage and nondrainage groups. Hb: hemoglobin; Hct: hematocrit.

(a)

(b)