@article{Babu2015, author = "Harish Babu and Giselle Cheung and Helmut Kettenmann and Theo D. Palmer and Gerd Kempermann", title = "{Figure 3}", year = "2015", month = "12", url = "https://plos.figshare.com/articles/figure/_Figure_3_/621366", doi = "10.1371/journal.pone.0000388.g003" }