Figure 5 - Overlay images of differential interference contrast (DIC) and confocal LSM images of microradioautographs of mouse liver 3 min after intravenous injection of ¹²⁵I-glucagon. The number of silver grains in the periportal zone (A) is higher than that in the perivenous zone (B). PV, Portal vein; CV, central vein. Bar = 50 µm.