A polarized FGF8 source specifies frontotemporal signatures in spatially oriented cell populations of cortical assembloids. - Bosone C; Castaldi D; Burkard TR; Guzman SJ; Wyatt T; Cheroni C; Caporale N; Bajaj S; Bagley JA; Li C; Sorre B; Villa CE; et al. (Nature methods, 2024)