Extended Data Fig. 1: ARG1-positive cells that are not microglia in WT mouse brain.

a-b, ARG1+/IBA1−cells in the cerebellum and around the ventricles (arrowheads) both at P10 (a) and at P28 (b) (representative images from 3 female animals per group). Scale bars, x = 50 μm. Yellow squares indicate location of the corresponding images on their left; grey lines indicate the BF/vStr region.