Changes to This Summary (12/05/2008)
The PDQ cancer information summaries are reviewed regularly and updated as
new information becomes available. This section describes the latest
changes made to this summary as of the date above.
General Information
Added text on levels of evidence, a formal ranking system to help the reader judge the strength of evidence linked to the reported results of a therapeutic strategy.
Added text to state that well-characterized cases of Ewing family of tumors in neonates and infants have been described (cited Kim et al. as reference 6).
Stage Information
Added Gerth et al. as reference 3.
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