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. Author manuscript; available in PMC: 2014 Sep 4.
Published in final edited form as: Clin Cancer Res. 2012 Mar 22;18(10):2801–2808. doi: 10.1158/1078-0432.CCR-12-0366

Table 1.

Cancer cells can be viewed as a species as part of an ecosystem

Man Cancer
Species Human and
  others
Cancer cells,
  host cells
Biotope Land Extracellular matrix
Local environment Ecosystem (City) Microenvironment,
  organ
Metacommunity Cities Metastases
Biosphere Earth Patient