Fig. 7
From: Cell-therapy for Parkinson’s disease: a systematic review and meta-analysis
UPDRS and UPDRSIII scores pre- versus post-transplantation in the ‘off’ state at the last follow-ups after retinal pigment epithelium cell and stem/progenitor cell treatment. The number of studies included are 2, 3, 4, and 4, respectively. Random-effect models are used. The sizes of squares represent the weight that each study contributes. The diamond at the bottom represents the overall effect. CI, confidence interval (represented by the lines)