title: Introduction: tumor as an organ.
authors.affiliation: Radiation Oncology Department, Duke University, Durham, NC.
authors.forename: Mark W
authors.initials: MW
authors.lastname: Dewhirst
mesh_terms: D017209:Apoptosis; D001343:Autophagy; D002470:Cell Survival; D006801:Humans; D009369:Neoplasms / Q000378:metabolism / Q000473:pathology* / Q000532:radiotherapy*; D011853:Radiobiology; D055153:Stem Cell Niche / Q000502:physiology*; D059016:Tumor Microenvironment