Division of Medical Oncology, Department of Medicine, Translational Bioinformatics and Cancer Systems Biology Laboratory, University of Colorado Anschutz Medical Campus, 80045 Aurora, Department of Medicine, National Jewish Health, 80206 Denver, Department of Craniofacial Biology, School of Dental Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Anschutz Medical Campus, 80045 Aurora, CO, USA and Department of Computer Science and Engineering, Korea University, Seoul 136-713, Korea Division of Medical Oncology, Department of Medicine, Translational Bioinformatics and Cancer Systems Biology Laboratory, University of Colorado Anschutz Medical Campus, 80045 Aurora, Department of Medicine, National Jewish Health, 80206 Denver, Department of Craniofacial Biology, School of Dental Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Anschutz Medical Campus, 80045 Aurora, CO, USA and Department of Computer Science and Engineering, Korea University, Seoul 136-713, Korea.