FIGURE 2.

H2228 Fixation IHC staining images and staining intensity for ALK (D5F3). A, Representative images (×20 magnification) of H2228 lung cancer xenograft tumor tissue stained for ALK (D5F3) following the indicated times of fixation in indicated fixatives. B, Graphical illustration of the impact of fixation time and fixative on staining intensity.