Angiogenesis Inhibitors/pharmacology; Antibodies, Monoclonal/pharmacology; Carcinoma, Small Cell/therapy; Glioblastoma/therapy; Lung Neoplasms/therapy; Receptor Protein-Tyrosine Kinases/antagonists & inhibitors; Receptor Protein-Tyrosine Kinases/immunology; Receptors, Growth Factor/antagonists & inhibitors; Receptors, Growth Factor/immunology; Angiogenesis Inhibitors/toxicity; Animals; Antibodies, Monoclonal/toxicity; Body Weight/immunology; Body Weight/radiation effects; Carcinoma, Small Cell/blood supply; Carcinoma, Small Cell/radiotherapy; Cell Division/immunology; Cell Division/radiation effects; Combined Modality Therapy; Dose Fractionation, Radiation; Dose-Response Relationship, Immunologic; Dose-Response Relationship, Radiation; Glioblastoma/blood supply; Glioblastoma/radiotherapy; Humans; Intestinal Diseases/etiology; Intestinal Diseases/immunology; Lung Neoplasms/blood supply; Lung Neoplasms/radiotherapy; Male; Mice; Mice, Nude; Oxygen/metabolism; Radiation Tolerance/immunology; Radiation Tolerance/physiology; Receptors, Vascular Endothelial Growth Factor; Skin/radiation effects; Whole-Body Irradiation/adverse effects; Xenograft Model Antitumor Assays