Andrew H. Fischer, Kenneth A. Jacobson, Jack Rose and Rolf Zeller; Hematoxylin and Eosin Staining of Tissue and Cell Sections; protocol was adapted from “Preparation of Cells and Tissues for Fluorescence Microscopy,” Chapter 4, in Basic Methods in Microscopy (eds. Spector and Goldman). Cold Spring Harbor Laboratory Press, Cold Spring Harbor, NY, USA, 2006.