title: Unknown primary tumors: an example of accelerated (type 2) tumor progression.
authors.affiliation: Department of Cell Biology, University of Texas M. D. Anderson Cancer Center, Houston.
authors.forename: P
authors.initials: P
authors.lastname: Frost
mesh_terms: D002471:Cell Transformation, Neoplastic / Q000235:genetics / Q000473:pathology; D002872:Chromosome Deletion; D002877:Chromosomes, Human / Q000648:ultrastructure; D006801:Humans; D008954:Models, Biological; D009361:Neoplasm Invasiveness / Q000235:genetics; D009362:Neoplasm Metastasis / Q000235:genetics*; D009382:Neoplasms, Unknown Primary / Q000235:genetics / Q000473:pathology*; D009928:Organ Specificity