1. From the Tissue Array Research Program, Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Md (Dr Hewitt); Histopathology and Molecular Pathology, the Leeds Teaching Hospitals NHS Trust and Pathology and Tumour Biology, the University of Leeds, Leeds, United Kingdom (Dr Lewis); Applied Biosystems, Foster City, Calif (Drs Cao an