Spatial fibroblast niches define Crohn’s fistulae - Colleen McGregor; Xiao Qin; Marta Jagielowicz; Tarun Gupta; Zinan Yin; Verena Lentsch; David Fawkner-Corbett; Vy Wien Lai; Paula Gomez Castro; Esther Bridges; Chloe Hyun-Jung Lee; Huei-Wen Chuang; et al. (Nature, 2026)