Figure 1.

Light microscopic images demonstrating that each antibody used in this study only produced labeling when incubated with the appropriate secondary antibody. The mouse anti-PV and mouse anti-CR antibodies only produce labeling when incubated with an anti-mouse secondary. The rat anti-D₁ antibody only produced labeling when incubated with anti-rat secondary, and the rabbit anti-D₅ antibody only produced labeling when incubated with anti-rabbit secondary. Scale bar is 500 μm.