1. Divisions of Pulmonary and Critical Care Medicine and Molecular Medical Genetics, Department of Internal Medicine, Michigan Proteomics Consortium, National Resource for Proteomics and Pathways, and Department of Biological Chemistry, Department of Statistics, and Department of Human Genetics, University of Michigan, Ann Arbor, Michigan, 48109, and Cell Signaling and Angiogenesis Laboratory, Boys Town National Research Hospital, University of Nebraska Medical Center, Omaha, Nebraska 68131