Extended Data Fig. 9. Regression analysis on the relation between DA neuron numbers and behavioral recovery/PET.

a, Linear regression analysis between ipsilateral caudate [¹¹C]DTBZ binding potential and FMS. b, Linear regression analysis between ipsilateral caudate [¹¹C]DTBZ binding potential and CRS. c, Linear regression analysis between ipsilateral caudate [¹¹C]DTBZ binding potential and CRS recovery rate. d, Linear regression analysis between ipsilateral caudate [¹¹C]DTBZ binding potential and surviving TH⁺ neuron numbers. e, Linear regression analysis between ipsilateral caudate [¹¹C]DTBZ binding potential and caudate surviving TH⁺ neuron numbers. f, Linear regression and logistic fitting analysis of FMS and total surviving TH⁺ neuron numbers in grafts. The Pearson’s r, significance (p value) and R² (coefficient of determination) were assessed by two-tailed Pearson’s correlation analysis in a-f.