Extended Data Fig. 1: Fluorofurimazine fails to enter the forebrain.
From: An optimized bioluminescent substrate for non-invasive imaging in the brain

a, FFz and Fz produce different patterns of light emission in mice doubly hemizygous for CaMKIIα-cre and CAG-LSL-Antares. b, Light emission after D-luciferin injection in mice doubly hemizygous for CaMKIIα-cre and CAG-LSL-FLuc transgenes.