FIGURE 3.

Calu-3 fixation IHC staining images and staining intensity for c-MET (SP44). A, Representative images (×20 magnification) of Calu-3 lung cancer xenograft tumor tissue stained for c-MET (SP44) following the indicated times of fixation in indicated fixatives. B, Graphical illustration of the impact of fixation time and fixative on staining intensity.